i think i have a cool idea for a character: dudebert, dudebert is a goofy lil guy with a goofy lil hat and he looks like this: 
but when your health is very low and you are using dudebert, some text will appear saying: "you pissed off dudebert, now you will pay" and then duebert will be covered black goo and eyes and a bossfight begins, here is how dudebert looks when you are fighting him:
hope u like this idea :)