Suggestions I have.
-Stamina Bar: You cannot dash forever and it seems to have a cooldown, it'd be nice to how much stam I have to continue dashing.
-Item Count: Since most items stack, it'd be wonderful to know how many I have and what the cap is.
-Digest Key: A button to digest like shown in the original animations, digesting to heal without the pill because the pill is very inconsistent (getting pills when full hp and no enemies left), obviously digesting should have you standing still which could be a risk-reward to do midfight if you're ballsy or something to do when you've cleared a screen so the next area doesn't kill you immediately.
-Aim Skull Spit: Would be useful for getting enemies out of the sky or on platforms above/below you.
Overall, still a solid game. Some enemies might need some endlag tho.