>>110594981It's a parody of the sims. This is a joke in that the Arcade's Revenge thing characters had hokey HP bars to indicate this status.
In the context of the comic it's the indicator for who you are supposed to fight. You fight the guy with the matching color as yours.
The gwemstuff is that she is desperate to make her comic continue because she believes that being cancelled will mean she dies.
Hulk's thing is that he is/was maybe possessed by a satanic figure and his most psychotic personality, devil hulk, is active most of the time. Keep in mind devil hulk is malicious and delights in killing and torturing people.