Sonic 1
Sonic 3
Sonic 2
scrapped zones in sonic games
Bosses (sonic mania)
100
Green hill zone
100
Hydrocity zone
100
oil ocean zone
100
hidden palace zone
100
Mean bean machine
200
Labyrinth zone
200
Ice cap zone
200
mystic cave zone
200
Wood zone
200
Phantom king
300
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Star light zone (picture says why is there a stage named after me?)
300
Launch base zone
300
Wing fortress zone
300
Dust hill zone
300
metal sonic kai
400
Marble zone
400
Angel island zone 
400
Sky chase zone
400
Genocide city zone
400
Shiversaw
500
Scrap brain zone
500
Big arms
500
Emerald hill zone
500
Egg gauntlet zone
500
Gachapandora