The game-play, graphics and sound are all on-point for the theme. The art is kind of crude, yeah, but it has its own charm to it and bug's face is brilliant. Great sense of humor throughout the game!
Only real suggestion I have is the game's balance is a little bit out of whack, with Bug being hilariously overpowered compared to some of the other fighters (though him vs the girl is a fun fight of carefully timing those insults to hit her as she's coming down from the air).
The hit-boxes on the attacks also felt strangely inconsistent. Like sometimes a full-on hit would do variable amounts of damage. At first I thought it was punishment for using the same insult too many times but I don't think that's the case? Something wierd might be happening with collisions, not sure.