diff --git a/pkg/yqlib/candidate_node_goccy_yaml.go b/pkg/yqlib/candidate_node_goccy_yaml.go
index 89471f18..3e861b83 100644
--- a/pkg/yqlib/candidate_node_goccy_yaml.go
+++ b/pkg/yqlib/candidate_node_goccy_yaml.go
@@ -69,6 +69,9 @@ func (o *CandidateNode) UnmarshalGoccyYAML(node ast.Node, cm yaml.CommentMap, an
 		o.Kind = ScalarNode
 		o.Tag = "!!null"
 		o.Value = node.GetToken().Value
+		if node.GetToken().Type == goccyToken.ImplicitNullType {
+			o.Value = ""
+		}
 	case ast.StringType:
 		o.Kind = ScalarNode
 		o.Tag = "!!str"
@@ -112,7 +115,7 @@ func (o *CandidateNode) UnmarshalGoccyYAML(node ast.Node, cm yaml.CommentMap, an
 		for _, mappingValueNode := range mappingNode.Values {
 			err := o.goccyProcessMappingValueNode(mappingValueNode, cm, anchorMap)
 			if err != nil {
-				return ast.ErrInvalidAnchorName
+				return err
 			}
 		}
 		if mappingNode.FootComment != nil {
@@ -126,7 +129,7 @@ func (o *CandidateNode) UnmarshalGoccyYAML(node ast.Node, cm yaml.CommentMap, an
 		mappingValueNode := node.(*ast.MappingValueNode)
 		err := o.goccyProcessMappingValueNode(mappingValueNode, cm, anchorMap)
 		if err != nil {
-			return ast.ErrInvalidAnchorName
+			return err
 		}
 	case ast.SequenceType:
 		log.Debugf("UnmarshalYAML -  a sequence node")
diff --git a/pkg/yqlib/goccy_yaml_test.go b/pkg/yqlib/goccy_yaml_test.go
index 8389e913..9c1158cb 100644
--- a/pkg/yqlib/goccy_yaml_test.go
+++ b/pkg/yqlib/goccy_yaml_test.go
@@ -7,96 +7,96 @@ import (
 )
 
 var goccyYamlFormatScenarios = []formatScenario{
-	// {
-	// 	description: "basic - 3",
-	// 	skipDoc:     true,
-	// 	input:       "3",
-	// 	expected:    "3\n",
-	// },
-	// {
-	// 	description: "basic - 3.1",
-	// 	skipDoc:     true,
-	// 	input:       "3.1",
-	// 	expected:    "3.1\n",
-	// },
-	// {
-	// 	description: "basic - mike",
-	// 	skipDoc:     true,
-	// 	input:       "mike: 3",
-	// 	expected:    "mike: 3\n",
-	// },
-	// {
-	// 	description: "basic - map multiple entries",
-	// 	skipDoc:     true,
-	// 	input:       "mike: 3\nfred: 12\n",
-	// 	expected:    "mike: 3\nfred: 12\n",
-	// },
-	// {
-	// 	description: "basic - 3.1",
-	// 	skipDoc:     true,
-	// 	input:       "{\n mike: 3\n}",
-	// 	expected:    "{mike: 3}\n",
-	// },
-	// {
-	// 	description: "basic - tag with number",
-	// 	skipDoc:     true,
-	// 	input:       "mike: !!cat 3",
-	// 	expected:    "mike: !!cat 3\n",
-	// },
-	// {
-	// 	description: "basic - array of numbers",
-	// 	skipDoc:     true,
-	// 	input:       "- 3",
-	// 	expected:    "- 3\n",
-	// },
-	// {
-	// 	description: "basic - single line array",
-	// 	skipDoc:     true,
-	// 	input:       "[3]",
-	// 	expected:    "[3]\n",
-	// },
-	// {
-	// 	description: "basic - plain string",
-	// 	skipDoc:     true,
-	// 	input:       `a: meow`,
-	// 	expected:    "a: meow\n",
-	// },
-	// {
-	// 	description: "basic - double quoted string",
-	// 	skipDoc:     true,
-	// 	input:       `a: "meow"`,
-	// 	expected:    "a: \"meow\"\n",
-	// },
-	// {
-	// 	description: "basic - single quoted string",
-	// 	skipDoc:     true,
-	// 	input:       `a: 'meow'`,
-	// 	expected:    "a: 'meow'\n",
-	// },
-	// {
-	// 	description: "basic - string block",
-	// 	skipDoc:     true,
-	// 	input:       "a: |\n  meow\n",
-	// 	expected:    "a: |\n  meow\n",
-	// },
-	// {
-	// 	description: "basic - long string",
-	// 	skipDoc:     true,
-	// 	input:       "a: the cute cat wrote a long sentence that wasn't wrapped at all.\n",
-	// 	expected:    "a: the cute cat wrote a long sentence that wasn't wrapped at all.\n",
-	// },
-	// {
-	// 	description: "basic - string block",
-	// 	skipDoc:     true,
-	// 	input:       "a: |-\n  meow\n",
-	// 	expected:    "a: |-\n  meow\n",
-	// },
-	// {
-	// 	description: "basic - line comment",
-	// 	skipDoc:     true,
-	// 	input:       "a: meow # line comment\n",
-	// 	expected:    "a: meow # line comment\n",
-	// },
+	{
+		description: "basic - 3",
+		skipDoc:     true,
+		input:       "3",
+		expected:    "3\n",
+	},
+	{
+		description: "basic - 3.1",
+		skipDoc:     true,
+		input:       "3.1",
+		expected:    "3.1\n",
+	},
+	{
+		description: "basic - mike",
+		skipDoc:     true,
+		input:       "mike: 3",
+		expected:    "mike: 3\n",
+	},
+	{
+		description: "basic - map multiple entries",
+		skipDoc:     true,
+		input:       "mike: 3\nfred: 12\n",
+		expected:    "mike: 3\nfred: 12\n",
+	},
+	{
+		description: "basic - 3.1",
+		skipDoc:     true,
+		input:       "{\n mike: 3\n}",
+		expected:    "{mike: 3}\n",
+	},
+	{
+		description: "basic - tag with number",
+		skipDoc:     true,
+		input:       "mike: !!cat 3",
+		expected:    "mike: !!cat 3\n",
+	},
+	{
+		description: "basic - array of numbers",
+		skipDoc:     true,
+		input:       "- 3",
+		expected:    "- 3\n",
+	},
+	{
+		description: "basic - single line array",
+		skipDoc:     true,
+		input:       "[3]",
+		expected:    "[3]\n",
+	},
+	{
+		description: "basic - plain string",
+		skipDoc:     true,
+		input:       `a: meow`,
+		expected:    "a: meow\n",
+	},
+	{
+		description: "basic - double quoted string",
+		skipDoc:     true,
+		input:       `a: "meow"`,
+		expected:    "a: \"meow\"\n",
+	},
+	{
+		description: "basic - single quoted string",
+		skipDoc:     true,
+		input:       `a: 'meow'`,
+		expected:    "a: 'meow'\n",
+	},
+	{
+		description: "basic - string block",
+		skipDoc:     true,
+		input:       "a: |\n  meow\n",
+		expected:    "a: |\n  meow\n",
+	},
+	{
+		description: "basic - long string",
+		skipDoc:     true,
+		input:       "a: the cute cat wrote a long sentence that wasn't wrapped at all.\n",
+		expected:    "a: the cute cat wrote a long sentence that wasn't wrapped at all.\n",
+	},
+	{
+		description: "basic - string block",
+		skipDoc:     true,
+		input:       "a: |-\n  meow\n",
+		expected:    "a: |-\n  meow\n",
+	},
+	{
+		description: "basic - line comment",
+		skipDoc:     true,
+		input:       "a: meow # line comment\n",
+		expected:    "a: meow # line comment\n",
+	},
 	// {
 	// 	description: "basic - head comment",
 	// 	skipDoc:     true,
@@ -109,54 +109,54 @@ var goccyYamlFormatScenarios = []formatScenario{
 	// 	input:       "# head comment\na: #line comment\n  meow\n",
 	// 	expected:    "# head comment\na: meow #line comment\n", // go-yaml does this
 	// },
-	// {
-	// 	description: "basic - foot comment",
-	// 	skipDoc:     true,
-	// 	input:       "a: meow\n# foot comment\n",
-	// 	expected:    "a: meow\n# foot comment\n",
-	// },
-	// {
-	// 	description: "basic - foot comment",
-	// 	skipDoc:     true,
-	// 	input:       "a: meow\nb: woof\n# foot comment\n",
-	// 	expected:    "a: meow\nb: woof\n# foot comment\n",
-	// },
-	// {
-	// 	description: "basic - boolean",
-	// 	skipDoc:     true,
-	// 	input:       "true\n",
-	// 	expected:    "true\n",
-	// },
-	// {
-	// 	description: "basic - null",
-	// 	skipDoc:     true,
-	// 	input:       "a: null\n",
-	// 	expected:    "a: null\n",
-	// },
-	// {
-	// 	description: "basic - ~",
-	// 	skipDoc:     true,
-	// 	input:       "a: ~\n",
-	// 	expected:    "a: ~\n",
-	// },
-	// {
-	// 	description: "basic - ~",
-	// 	skipDoc:     true,
-	// 	input:       "null\n",
-	// 	expected:    "null\n",
-	// },
-	// {
-	// 	skipDoc:     true,
-	// 	description: "trailing comment",
-	// 	input:       "test:",
-	// 	expected:    "test:",
-	// },
-	// {
-	// 	skipDoc:     true,
-	// 	description: "trailing comment",
-	// 	input:       "test: null\n# this comment will be removed",
-	// 	expected:    "test: null\n# this comment will be removed\n",
-	// },
+	{
+		description: "basic - foot comment",
+		skipDoc:     true,
+		input:       "a: meow\n# foot comment\n",
+		expected:    "a: meow\n# foot comment\n",
+	},
+	{
+		description: "basic - foot comment",
+		skipDoc:     true,
+		input:       "a: meow\nb: woof\n# foot comment\n",
+		expected:    "a: meow\nb: woof\n# foot comment\n",
+	},
+	{
+		description: "basic - boolean",
+		skipDoc:     true,
+		input:       "true\n",
+		expected:    "true\n",
+	},
+	{
+		description: "basic - null",
+		skipDoc:     true,
+		input:       "a: null\n",
+		expected:    "a: null\n",
+	},
+	{
+		description: "basic - ~",
+		skipDoc:     true,
+		input:       "a: ~\n",
+		expected:    "a: ~\n",
+	},
+	{
+		description: "basic - ~",
+		skipDoc:     true,
+		input:       "null\n",
+		expected:    "null\n",
+	},
+	{
+		skipDoc:     true,
+		description: "blank value round trip",
+		input:       "test:",
+		expected:    "test:\n",
+	},
+	{
+		skipDoc:     true,
+		description: "trailing comment",
+		input:       "test: null\n# this comment will be removed",
+		expected:    "test: null\n# this comment will be removed\n",
+	},
 	// {
 	// 	description: "doc separator",
 	// 	skipDoc:     true,
@@ -169,106 +169,106 @@ var goccyYamlFormatScenarios = []formatScenario{
 	// 	input:       "--- cat",
 	// 	expected:    "---\ncat\n",
 	// },
-	// {
-	// 	description: "scalar with doc separator",
-	// 	skipDoc:     true,
-	// 	input:       "---cat",
-	// 	expected:    "---cat\n",
-	// },
-	// {
-	// 	description: "basic - null",
-	// 	skipDoc:     true,
-	// 	input:       "null",
-	// 	expected:    "null\n",
-	// },
-	// {
-	// 	description: "basic - ~",
-	// 	skipDoc:     true,
-	// 	input:       "~",
-	// 	expected:    "~\n",
-	// },
-	// {
-	// 	description: "octal",
-	// 	skipDoc:     true,
-	// 	input:       "0o30",
-	// 	expression:  "tag",
-	// 	expected:    "!!int\n",
-	// },
-	// {
-	// 	description: "basic - [null]",
-	// 	skipDoc:     true,
-	// 	input:       "[null]",
-	// 	expected:    "[null]\n",
-	// },
-	// {
-	// 	description: "multi document",
-	// 	skipDoc:     true,
-	// 	input:       "a: mike\n---\nb: remember",
-	// 	expected:    "a: mike\n---\nb: remember\n",
-	// },
-	// {
-	// 	description: "single doc anchor map",
-	// 	skipDoc:     true,
-	// 	input:       "a: &remember mike\nb: *remember",
-	// 	expected:    "a: mike\nb: *remember\n",
-	// },
-	// {
-	// 	description: "explode doc anchor map",
-	// 	skipDoc:     true,
-	// 	input:       "a: &remember mike\nb: *remember",
-	// 	expression:  "explode(.)",
-	// 	expected:    "a: mike\nb: mike\n",
-	// },
-	// {
-	// 	description: "multi document anchor map",
-	// 	skipDoc:     true,
-	// 	input:       "a: &remember mike\n---\nb: *remember",
-	// 	expression:  "explode(.)",
-	// 	expected:    "a: mike\n---\nb: mike\n",
-	// },
-	// {
-	// 	description: "merge anchor",
-	// 	skipDoc:     true,
-	// 	input:       "a: &remember\n  c: mike\nb:\n  <<: *remember",
-	// 	expected:    "a: &remember\n  c: mike\nb:\n  <<: *remember\n",
-	// },
+	{
+		description: "scalar with doc separator",
+		skipDoc:     true,
+		input:       "---cat",
+		expected:    "---cat\n",
+	},
+	{
+		description: "basic - null",
+		skipDoc:     true,
+		input:       "null",
+		expected:    "null\n",
+	},
+	{
+		description: "basic - ~",
+		skipDoc:     true,
+		input:       "~",
+		expected:    "~\n",
+	},
+	{
+		description: "octal",
+		skipDoc:     true,
+		input:       "0o30",
+		expression:  "tag",
+		expected:    "!!int\n",
+	},
+	{
+		description: "basic - [null]",
+		skipDoc:     true,
+		input:       "[null]",
+		expected:    "[null]\n",
+	},
+	{
+		description: "multi document",
+		skipDoc:     true,
+		input:       "a: mike\n---\nb: remember",
+		expected:    "a: mike\n---\nb: remember\n",
+	},
+	{
+		description: "single doc anchor map",
+		skipDoc:     true,
+		input:       "a: &remember mike\nb: *remember",
+		expected:    "a: &remember mike\nb: *remember\n",
+	},
+	{
+		description: "explode doc anchor map",
+		skipDoc:     true,
+		input:       "a: &remember mike\nb: *remember",
+		expression:  "explode(.)",
+		expected:    "a: mike\nb: mike\n",
+	},
+	{
+		description: "multi document anchor map",
+		skipDoc:     true,
+		input:       "a: &remember mike\n---\nb: *remember",
+		expression:  "explode(.)",
+		expected:    "a: mike\n---\nb: mike\n",
+	},
+	{
+		description: "merge anchor",
+		skipDoc:     true,
+		input:       "a: &remember\n  c: mike\nb:\n  <<: *remember",
+		// fine to have !!merge as that's what the current impl does
+		expected: "a: &remember\n  c: mike\nb:\n  !!merge <<: *remember\n",
+	},
 	{
 		description: "custom tag",
 		skipDoc:     true,
 		input:       "a: !cat mike",
 		expected:    "a: !cat mike\n",
 	},
-	// {
-	// 	description: "basic - [~]",
-	// 	skipDoc:     true,
-	// 	input:       "[~]",
-	// 	expected:    "[~]\n",
-	// },
-	// {
-	// 	description: "basic - null map value",
-	// 	skipDoc:     true,
-	// 	input:       "a: null",
-	// 	expected:    "a: null\n",
-	// },
-	// {
-	// 	description: "basic - number",
-	// 	skipDoc:     true,
-	// 	input:       "3",
-	// 	expected:    "3\n",
-	// },
-	// {
-	// 	description: "basic - float",
-	// 	skipDoc:     true,
-	// 	input:       "3.1",
-	// 	expected:    "3.1\n",
-	// },
-	// {
-	// 	description: "basic - float",
-	// 	skipDoc:     true,
-	// 	input:       "[1, 2]",
-	// 	expected:    "[1, 2]\n",
-	// },
-
+	{
+		description: "basic - [~]",
+		skipDoc:     true,
+		input:       "[~]",
+		expected:    "[~]\n",
+	},
+	{
+		description: "basic - null map value",
+		skipDoc:     true,
+		input:       "a: null",
+		expected:    "a: null\n",
+	},
+	{
+		description: "basic - number",
+		skipDoc:     true,
+		input:       "3",
+		expected:    "3\n",
+	},
+	{
+		description: "basic - float",
+		skipDoc:     true,
+		input:       "3.1",
+		expected:    "3.1\n",
+	},
+	{
+		description: "basic - float",
+		skipDoc:     true,
+		input:       "[1, 2]",
+		expected:    "[1, 2]\n",
+	},
 }
 
 func testGoccyYamlScenario(t *testing.T, s formatScenario) {
diff --git a/pkg/yqlib/operator_anchors_aliases_test.go b/pkg/yqlib/operator_anchors_aliases_test.go
index 8b423b37..a24f3fdd 100644
--- a/pkg/yqlib/operator_anchors_aliases_test.go
+++ b/pkg/yqlib/operator_anchors_aliases_test.go
@@ -223,9 +223,20 @@ var anchorOperatorScenarios = []expressionScenario{
 			"D0, P[], (!!map)::a: mike\n",
 		},
 	},
+	{
+		description:    "Explode with alias keys",
+		subdescription: "No space between alias",
+		skipDoc:        true,
+		document:       `{f : {a: &a cat, *a: b}}`,
+		expression:     `explode(.f)`,
+		expected: []string{
+			"D0, P[], (!!map)::{f: {a: cat, cat: b}}\n",
+		},
+		skipForGoccy: true, // can't handle no space between alias
+	},
 	{
 		description: "Explode with alias keys",
-		document:    `{f : {a: &a cat, *a: b}}`,
+		document:    `{f : {a: &a cat, *a : b}}`,
 		expression:  `explode(.f)`,
 		expected: []string{
 			"D0, P[], (!!map)::{f: {a: cat, cat: b}}\n",
diff --git a/pkg/yqlib/operator_style_test.go b/pkg/yqlib/operator_style_test.go
index e20e93f2..11214092 100644
--- a/pkg/yqlib/operator_style_test.go
+++ b/pkg/yqlib/operator_style_test.go
@@ -47,10 +47,10 @@ var styleOperatorScenarios = []expressionScenario{
 	},
 	{
 		skipDoc:    true,
-		document:   "bing: &foo frog\na:\n  c: cat\n  <<: [*foo]",
+		document:   "bing: &foo {x: z}\na:\n  c: cat\n  <<: [*foo]",
 		expression: `(... | select(tag=="!!str")) style="single"`,
 		expected: []string{
-			"D0, P[], (!!map)::'bing': &foo 'frog'\n'a':\n    'c': 'cat'\n    !!merge <<: [*foo]\n",
+			"D0, P[], (!!map)::'bing': &foo {'x': 'z'}\n'a':\n    'c': 'cat'\n    !!merge <<: [*foo]\n",
 		},
 	},
 	{
diff --git a/pkg/yqlib/operator_traverse_path_test.go b/pkg/yqlib/operator_traverse_path_test.go
index 4a2c7917..a069e9f6 100644
--- a/pkg/yqlib/operator_traverse_path_test.go
+++ b/pkg/yqlib/operator_traverse_path_test.go
@@ -43,6 +43,7 @@ var traversePathOperatorScenarios = []expressionScenario{
 		expected: []string{
 			"D0, P[x], (!!null)::null\n",
 		},
+		skipForGoccy: true, // throws an error instead, that's fine
 	},
 	{
 		skipDoc:     true,
@@ -553,6 +554,7 @@ var traversePathOperatorScenarios = []expressionScenario{
 		document:      badAliasSample,
 		expression:    ".steps[]",
 		expectedError: "can only use merge anchors with maps (!!map), but got !!seq",
+		skipForGoccy:  true, // throws an error on parsing, that's fine
 	},
 }
 
diff --git a/pkg/yqlib/operator_unique_test.go b/pkg/yqlib/operator_unique_test.go
index 7b2c1629..0b81f64e 100644
--- a/pkg/yqlib/operator_unique_test.go
+++ b/pkg/yqlib/operator_unique_test.go
@@ -99,6 +99,7 @@ var uniqueOperatorScenarios = []expressionScenario{
 		expected: []string{
 			"D0, P[], (!!seq)::# abc\n[{name: harry, pet: cat}, {pet: fish}]\n# xyz\n",
 		},
+		skipForGoccy: true, // https://github.com/goccy/go-yaml/issues/757
 	},
 }
 
diff --git a/pkg/yqlib/operators_test.go b/pkg/yqlib/operators_test.go
index fe6cadcc..eef6da26 100644
--- a/pkg/yqlib/operators_test.go
+++ b/pkg/yqlib/operators_test.go
@@ -29,12 +29,27 @@ type expressionScenario struct {
 	expectedError         string
 	dontFormatInputForDoc bool // dont format input doc for documentation generation
 	requiresFormat        string
+	skipForGoccy          bool
 }
 
+var goccyTesting = false
+
+var testingDecoder = NewYamlDecoder(ConfiguredYamlPreferences)
+
 func TestMain(m *testing.M) {
 	logging.SetLevel(logging.ERROR, "")
+	if os.Getenv("DEBUG") == "true" {
+		logging.SetLevel(logging.DEBUG, "")
+	}
 	ConfiguredYamlPreferences.ColorsEnabled = false
 	ConfiguredJSONPreferences.ColorsEnabled = false
+
+	goccyTesting = os.Getenv("GOCCY") == "true"
+
+	if goccyTesting {
+		testingDecoder = NewGoccyYAMLDecoder()
+	}
+
 	Now = func() time.Time {
 		return time.Date(2021, time.May, 19, 1, 2, 3, 4, time.UTC)
 	}
@@ -53,10 +68,13 @@ func NewSimpleYamlPrinter(writer io.Writer, unwrapScalar bool, indent int, print
 func readDocument(content string, fakefilename string, fakeFileIndex int) (*list.List, error) {
 	reader := bufio.NewReader(strings.NewReader(content))
 
-	return readDocuments(reader, fakefilename, fakeFileIndex, NewYamlDecoder(ConfiguredYamlPreferences))
+	return readDocuments(reader, fakefilename, fakeFileIndex, testingDecoder)
 }
 
 func testScenario(t *testing.T, s *expressionScenario) {
+	if s.skipForGoccy {
+		return
+	}
 	var err error
 	node, err := getExpressionParser().ParseExpression(s.expression)
 	if err != nil {
@@ -192,7 +210,7 @@ func formatYaml(yaml string, filename string) string {
 		panic(err)
 	}
 	streamEvaluator := NewStreamEvaluator()
-	_, err = streamEvaluator.Evaluate(filename, strings.NewReader(yaml), node, printer, NewYamlDecoder(ConfiguredYamlPreferences))
+	_, err = streamEvaluator.Evaluate(filename, strings.NewReader(yaml), node, printer, testingDecoder)
 	if err != nil {
 		panic(err)
 	}