I think I found a good alternative to Back Tilts in Sigma Busters. Instead of Back Tilts, there is a Dash Charge and Air Charge. Dash Charges are done while pressing the Charge button while running, allowing you to do a stronger but more committed burst movement tool, but naturally having higher kill power. This will make standard Dash Attacks less laggy, letting them be more solid combo tools, something Dash Attacks in other platfighters often don't do. Air Charges, meanwhile, can be aimed left and right and offer both movement mixups for recovery purposes, while offering an aerial that can offer different purposes based off each character. Some characters just have chargable aerials, while some Air Charges offer a mobility tool like Terry's Crackshoot, or some offer new methods of mobility like a Knuckles-esc glide. I wonder if I can improve this concept to make my game more distinct from other platfighters. How can I flesh it out and make it a really cool mechanic?
EDIT - After some time, I feel it would be better to describe these moves as sorta a divide between neutral attacks and specials. Specials in Sigma Busters are able to be enhanced with meter to become Hyper Specials, while yes these Charge moves are character-specific; they aren't meter-enhancable, so there's a middle ground between tilts and specials.
Sounds like it could be interesting, at least. It'd need workshopping to feel ideal, but I'm sure you could play around with it in fresh ways.