Monkey Wars in Super Monkey Ball Banana Blitz
Sega's designers threw a kitchen sink's worth of remote functionality into Monkey Ball, and the result was a huge selection of minigames of highly variable quality. Among the very best, this monkey-based maze shooter is a riot with four players, if maybe a bit slow.
Motor Kombat in Mortal Kombat Armageddon
What could be a more natural diversion from normal Mortal Kombat than the chance to race big-headed characters through the hellish locations of the main game in tiny karts? They can be squished into meaty chunks or knocked into flaming pits for temporary fatalities.
Pair-a-Gone in New Super Mario Bros
Flip the cards two at a time to find matching pairs, memorizing where they are if you turn over a couple of singles. It's an ancient card game that can be played in the "real" world - but you won't have the pleasure of winning coins from Luigi if you don't do it on DS. Also featured in Super Mario 64 DS.
Chicken Launch in Barnyard
Ready... aim... fire! Launch your otherwise flightless fowl into the sky and pilot it heroically through a course of target markers, propelled by a rousing bout of Wagner's "Ride of the Valkyries." Yes, this is totally ridiculous, but it's as good a reason as any to check out a copy of this surprisingly acceptable movie tie-in.