From the introduction:
Combat Monster is the game of "Trash-and-Bash" battles in which character concept plays a vastly important role and monkeys may fly out of your butt. The whole point of Combat Monster is to design an unstoppable, unbeatable, unlikely character to roll dice for. (Or, see the alternate "Coin-Toss" system, below.) Actually, character may be too strong a word, considering that the player isn't required to actually develop a personality for the thing - in fact, he'll get more points if he doesn't. Instead, we'll just call it a Combat Monster (hence the name) or CM for short.