Hey Cyriacus! thanks for playing my gamee, yes , I did indeed think of adding more characters but im not really good at pixel art and stuff, and the character animation and stuff were really time taking for me, so i kinda sulked on it,
About one hit killing you outright, I am planning to add health system for each lil goober to make it so that there's more concession and it would also create shift of focus to the character that has low health which can make you neglect another and then it all just snowballs and
CHAOS MWHAHAHA; ,erhm,yeah;
sidenote: there are four characters (at 180 seconds), the last one I added is kind of an easter egg, and it gets very difficult after that(even I've only got there 7-8 times during final playtestings)