Mario & Luigi: Partners In Time/Funny


 * Luigi's Butt Monkey status is cranked higher, made hilariously worse when his past self does most of the abusing (and even laughing as he does so).
 * Mario using Baby Mario to attack Petey Piranha.
 * Luigi's repeated failed attempts at trying to run away from Sunnycide.
 * The 1337 Hammer Brothers.
 * The moment Toadsworth sees his past self with Baby Peach, he instantly assumes that his younger self has de-aged Peach into a baby and kidnapped her, and starts chasing him around. Even when he figures out the truth, he just can't get along with his past self. On a related note, their attempts to cheer Baby Peach up are also pretty damn funny.