I Thought They Looked Familiar: Bioshock Big Daddies Actually Bomberman In Disguise
A-ha! It's really true too, once you see him he's nearly impossible to un-see. Thankfully, I have a little secret: booze. Higher proof the better. Okay, now pour it in your eyes. Can't see him anymore, can you? Good. How many fingers am I holding up? If you answered, "none, but is that you touching my butt?", yes, it is. Also, doing some squats wouldn't kill you.
You can't unsee Bomberman in BioShock 2 [joystiq]
Thanks to GuamOtoko, who once thought he saw Mario on the cover of God of War III but it turned out to be he was tripping his face off.