Double Toast, I present to you, the Dusty Cavern save! This level could be where you get the Blue Pikmin, since the main terrain in this map is water. It also comes with a huge grey wall, which you must have yellow pikmin to use the bombs to blow it up. It ALSO has a few good spots that treasures could be placed, BUT for this, the player can not have the ability to jump, but I hope you know this because Olimar can't jump in game...can he? I haven't played in a long time.
Anyway, tell me what you think and I'll be glad to make you some more.