The Extreme Perspirator is a treasure in Pikmin 2 that is actually a wobbling doll. It is found on the 8th sublevel of the Dream Den where it is guarded by multiple Dweevils. It is the 128th treasure on the List of Pikmin 2 treasures in the NTSC version and the 127th in the PAL version.
Captain Olimar's Journal
"What an odd doll. I can't stop squeezing it. I've decided to market this doll back home as an exercise apparatus. People could work up a good sweat with this thing. The boss is fairly plump... I'll suggest he use it."
"Push it, pull it, tackle it! This tough figurine just pops right back up, no matter what. This is just the thing to get you sweating and shedding those extra holiday pounds! Why, our very own company president was able to drop ten percent of his body weight!"