I think it may be possible to beat Pikmin 1 with only yellow pikmin.
The first day and two Bramble Gates to get to the yellow onion don't count. For water, the swimming glitch can be used. Actual carrying of the part back can be done with blues (preferably from a Candypop Bud), I'm okay with that. Bramble Gates can be destroyed by throwing the yellows on top of them, not to the sides, I've done this. I've started a yellow-only playthrough. I've already gotten the Main Engine (from the tutorial day), the Sagittarius (accomplished with the swimming glitch across the water, landing the pikmin on that one nudge of land and throwing them up to the bridge. Once the bridge is halfway done, you can go the the island in the same lake, reached only by another bridge and throw yellows on), the Extraordinary Bolt (obvious), Eternal Fuel Dynamo (obvious) and the Whimsical Radar (obvious). I also know that your can get the Gluon Drive by using the swimming glitch. The only problems I see is the Interstellar Radio (can't throw pikmin on it...maybe suicidal bomb-rocks? You could lure the nearby Water Dumples and have them eat your bomb-rock carriers while they're underneath Puffy). Paradox Juice 19:01, February 27, 2010 (UTC)