Here's two more...
Mappy-Land:
The original game was a classic arcade style game where you're a mouse trying to collect all the items and avoid the cats chasing you. The sequel actually has a story-line and is kinda like a platformer, although the gameplay is the same as the first game. I'd definitely recommend it as a quick time killer
StarForce:
If you like spaceshooters, you'll love this one. Although i suggest playing the PAL version of the game rather than the USA version, just for better music. The PAL version was released before the USA version, and even though the instruments are more simple, it definitely sets the mood better than the USA soundtrack, which is more quiet, and not as loud. Oh, and this game is also HAAAAAAAARD. Especially if you're playing the Arcade version from the Virtual Console section on your Wii... THAT version is jacked, lol