Here is the full list of all 100 Synthwave Runner achievements.
Synthwave Runner 1
Synthwave Runner 2
Synthwave Runner 3
Synthwave Runner 4
Synthwave Runner 5
Synthwave Runner 6
Synthwave Runner 7
Synthwave Runner 8
Synthwave Runner 9
Synthwave Runner 10
Synthwave Runner 11
Synthwave Runner 12
Synthwave Runner 13
Synthwave Runner 14
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Synthwave Runner 18
Synthwave Runner 19
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Synthwave Runner 21
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Synthwave Runner 24
Synthwave Runner 25
Synthwave Runner 26
Synthwave Runner 27
Synthwave Runner 28
Synthwave Runner 29
Synthwave Runner 30
Synthwave Runner 31
Synthwave Runner 32
Synthwave Runner 33
Synthwave Runner 34
Synthwave Runner 35
Synthwave Runner 36
Synthwave Runner 37
Synthwave Runner 38
Synthwave Runner 39
Synthwave Runner 40
Synthwave Runner 41
Synthwave Runner 42
Synthwave Runner 43
Synthwave Runner 44
Synthwave Runner 45
Synthwave Runner 46
Synthwave Runner 47
Synthwave Runner 48
Synthwave Runner 49
Synthwave Runner 50
Synthwave Runner 51
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Synthwave Runner 53
Synthwave Runner 54
Synthwave Runner 55
Synthwave Runner 56
Synthwave Runner 57
Synthwave Runner 58
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Synthwave Runner 60
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Synthwave Runner 65
Synthwave Runner 66
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Synthwave Runner 68
Synthwave Runner 69
Synthwave Runner 70
Synthwave Runner 71
Synthwave Runner 72
Synthwave Runner 73
Synthwave Runner 74
Synthwave Runner 75
Synthwave Runner 76
Synthwave Runner 77
Synthwave Runner 78
Synthwave Runner 79
Synthwave Runner 80
Synthwave Runner 81
Synthwave Runner 82
Synthwave Runner 83
Synthwave Runner 84
Synthwave Runner 85
Synthwave Runner 86
Synthwave Runner 87
Synthwave Runner 88
Synthwave Runner 89
Synthwave Runner 90
Synthwave Runner 91
Synthwave Runner 92
Synthwave Runner 93
Synthwave Runner 94
Synthwave Runner 95
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Synthwave Runner 97
Synthwave Runner 98
Synthwave Runner 99
Synthwave Runner 100