Bosses

There are 7 different bosses with 6 minibosses (7 counting the Robot Masters).

Bosses
The first 6 bosses are the heroes ranked from 6 to 1.

The 7th is ??? who takes Wryn's place as the #1 hero after killing all of the heroes.

Guppy - The Slug-like 6th Best Hero
Guppy is a purple, flying, slug-like creature. His fight is somewhat simple, he has 3 main attacks - he shoots 5 circular projectiles, spawns a lil' Guppy, or turns pink and slams down on you - spawning four lil' Guppies in the process. After getting damaged quite a bit, Guppy splits into four. Now all he does is shoot one projectile. The segments will then split into 6 lil' guppies when killed. The lil' Guppies in this fight have much more hp than the lil' Guppies in the stage.