This is my analysis on the characters. It's probably a little bit off, but i just thought it would be neat.
Viewing post in Super Tilt Bro. for NES comments
Nice analysis!
It matches mine on most points. Except for Kiki's recovery which I think is the poorest of the game. You can recover high because "double jump -> spe up -> double jump" can gain a lot of height rapidly. But if you are forced to recover low, it is too predictable, you don't have any tool to hit a edgeguarder, and wall-jump does not allow a second up-spe.