Pikmin 1 was already a fine game, but Pikmin 2 improves on it in every way. Pikmin 2 swaps the challenge of repairing your ship in a limited number of days with the challenge of finite Pikmin in the caves, which I feel is a huge trade up. The caves vary wildly in difficulty-- you can go from a complete pikmin bloodbath to a walk in the park. That being said, nothing was frustrating enough for me to stop playing entirely. Even when I managed to practically wipe out all my blue pikmin, thanks to the lack of time constraint I could spend a day rebuilding my army.