Developer: Nintendo EAD
Released: 2004, GameCube
Pikmin 2 is a real-time strategy game and the sequel to the first game. Hence the 2. This game fixes one of the main problems people had with the first game, the time limit, and adds many, many more items to collect.
This game has enough unused content to fill an entire other game. There are unused caves, a debug field, treasures (three sets!), text, music, graphics, and even an early English script! It's also probably the largest page on the wiki. So that's something.