justandyagain
1995
1994
1993
1992
An all time classic. This is Sonic fully established. I've beaten it a hundred times, but recently I stop after Mystic Cave or Oil Ocean. I just don't care for the later levels and this game's version half-pipe is just a way worse special stage than any other in the series, so I don't go for Super Sonic typically
2021
2011
1998
2017
It's basically a perfect introduction to 2D Sonic for the mainstream of today. I would have loved to see more original zones than just the four. Titanic Monarch is one of my favorite final stages in the Sonic series, it has a truly authentic sense of challenge to the platforming. It's easy to clear while Super, but if you somehow didn't get the emeralds by this point (because the Special Rings are spammed), just take it slow and practice :)
2017
2023
2021