Alright, I really like this mod and it does what it sets out to do very well, but there's some issues I have.
The Helmet has no real use, given you're almost never in a situation where you'd need it and the situations you'd need it in are usually when you don't have it equipped. It's pretty terrible in my opinion. Speaking of switching...
The Equip system isn't very good in my opinion. It's fine for what it is, but it's hard to use for switching items on the fly. For example, if you're trying to speedrun a level, you'd be using Shoes the entire time, but then you're more or less excluding bombs as while you can open the menu while moving, you'll be forced to stop to scroll over to and select the bombs, overall wasting time. This could be fixed by making the menu function a bit differently. Maybe have it be a Next/Prev weapon scroll or have each item correspond to a button while in the menu. (Eg. you'd press C3 to open the menu, then jump for bomb, spin for napalms, ect.)
TossFlag is a strange button to use for what is your character's main mechanic, I'd suggest adding the ability to bind it to something else, like Fire.
Flight without the Chaos Emeralds is so incredibly short it's not worth using at all. It barely lasts a full second, so I'd suggest buffing it a tiny bit so you can get at least a little use out of it.
The Remote Robot is a bit strange, but it works well. However, you can cancel it in a state like a zoom tube and have Tails just fly straight through the entire stage. While it's really fun to do that, it's probably not intended. Plus it being able to take damage and die, costing you rings and lives is a bit strange, given your character isn't actually taking damage at all.
Besides those issues though, this mod is really good! He's super fun to play, and even though he has some jank to him, it's not enough to stop me from playing entire sessions as him. A real 10 outta good if you will.