This is part 20 of my Mario & Luigi: Partners in Time gameplay walkthrough for the Nintendo DS! In this part, we make our way through the arena, but before we do so we peek into some holes (giggity) to see whats going on the stage. Princess Peach has been devoured by a Piranha Plant that we know as a Boss Piranha. Is she really gone after that?! Lets find out! Lets-A-GO!!!