Tofu Boy is a PC/Mac/Linux exclusive joke character originating from PETA's parody of Super Meat Boy, called Super Tofu Boy. Tofu Boy has an inflated ego, and is not actually as effective as he thinks he is. With the lowest speed and jumping height of all characters due to a "major iron deficiency", Tofu Boy is virtually useless. He is incapable of beating almost all levels, even being incapable of completing the first level without the use of the alt glitch. However, completing any level always awards the player an A+ no matter how much time it takes.
Tofu Boy was added as a playable character on December 8th, 2010. He can be playable by typing "petaphile" in the character selection screen, then selecting any character at the character select screen. however one must be fast to get it done correctly.
Typing in the code for Tofu Boy awards the player with the "Well look at you!" achievement. This achievement is only available in the Steam version and Ultra Edition of the game.