Ho Yay: Mega Man and Gutsman get a fair amount, down to Gutsman buying them friendship rings that say "Butt Buddies". "Because we're buddies... who kick butt!"
Affirmed during 'Mega Villains', when Mega Man is asked if he and Guts Man are going out, Mega Man denies it, while Guts Man confirms it.
Seasonal Rot: Not to the same extent as most examples but still there in season two. Season one had a clearer story and knew what direction it wanted to go in. Season two didn't, as much of it is just parodying other movies and not really having a story arc or a destination. This was pointed by X,Zero,and Bass once the final few episodes came around.
Tear Jerker: Some people have considered Guts Man's death to be pretty sad.