When you beat a Micro-set (wario, mona, mic),
play it again and get at least a score of 30. You will get an extra souvenir in your toy room.
Get the high score on every game that has a high score, such as Orbit Ball, Air Dude, Juggle Boy, and Big Hurl.
Thanks to Revolution readers Doomsing and EVILflyingpiggie!