Mario & Luigi: Dream Team

Mario & Luigi: Dream Team is a game for the Nintendo 3DS released in 2013.

Plot
A dream come true: an invitation to the Pi'liio Islands! Dr. Snoozemore has just discovered some sort of recipe for a blissful sleep and wants to show it to everyone when he gets back from his tour. Princess Peach, Toadsworth, Mario, Luigi, and a host of Toads hop on the blimp, ready to enjoy their fun time, but Luigi has been sort of sluggish recently, maybe a quick whiff of that dream dust might do him some good...