Boo's Haunted House is a platform game. You control the main character, Boo, from the Mario games. He can move around and jump to kill enemies. There are seven levels so far, and some of them model those of other games (Metroid and Zelda, for example).
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Coolio Music is an MP3/MIDI player that also includes many MIDIs from games. One feature that I am sure NO OTHER media player has is that you can actually move a character around while you're listening to music! The character can jump and some can even do different poses by pressing certain keys on the numpad.
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