That was fun! As someone who did something similar, I must say you captured the spirit of Lethal League pretty well!
If I could give a tip it would be to do hitstop only with the characters involved in the action, otherwise if you pause everything it would feel like the game is stuttering. Also, It would be nice to know if the charged attack is already at full power, so the player stops charging it.
All in all had fun making robots explode. Thank you for the entry!