What's messing with me for Classic Sonic is the way his momentum works. You have minimal air control besides being able to grind all speed to a halt, but every time you jump and keep moving, you will maintain the exact same momentum from start to finish. Not even slow jumps can gain more speed. Combine that with a crappy speed cap that feels more limiting than Sonic 1, automation that picks how fast you can go half the time, and the Spin Dash being incredibly awkward to the point that if you go off of a ramp, you lose ALL air control. I also don't get why the hell they basically made the Speed Shoes last like 4 seconds and cut the oxygen limit (pre-countdown) underwater in half or even less. The Invincibility works perfectly fine, so it's like.. what?