Overlooked game exploit: for more money, go to a texas shootem match that only has AI players. Raise relatively small amounts, 500-1000 each time, but when the last card is laid on the table, raise the maximum amount allowed, and for me, the computer players have folded immediately every time, in about 30-40 goes. Use at your own risk I guess, but I think it's something that has been overlooked in game development.
You don't enter them, Newgold. The Konami Code one is two clicks from the ground while you're playing, and then two hits while in the air. (up, up, down, down.)