This Article Contains information directly from the Pikmin Games. This article is based off of an Enemy/Treasure/Area/Cave/Pikmin/Character from the Pikmin series of Games.
The Diet Doomer is a treasure in Pikmin 2. It can be found in the first sublevel in the Submerged Castle, near a Fiery Blowhog and many fire geysers. The Diet Doomer is actually a piece of wrapped strawberry chocolate. It is considered the ultimate pleasure, everyone including the Research Pod wants it in their mouth.