I like how the down-attack reacts to momentum. But I think the default attack needs more knockback. You inevitably get hit if you mash it in front of an enemy, so it's better to just jump on the snakes and spam the sonic spin move. There also might be too much horizontal momentum during the jump, but that's preference.

could use a hurt sound effect or stun sprite or something. Also jumps could be a lot less floaty. But you got a good style going on here. Looking forward to more.