Paper Mario - Danger Mario

Power Rush : "When Mario's HP is low, and he's in Danger, his attack power will go up by 2. A popular strategy involving this badge involves buying and equipping a very large amount of them (e.g. more than 20) and using Chet Rippo to decrease Mario's maximum HP to 5, therefore giving him a permanent attack boost of huge proportions. Wearing 50 of this badge at once will cap Mario's attack power at 99, allowing him to defeat any boss in one turn."