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Currently, my ringtone is King Dedede's Theme from Kirby Superstar, and my text tone is Ghost of Rattman from the Portal 2 soundtrack (the idea being that, at its current volume, it's nearly - but not quite - inperceptible to people who've not heard it before, and it sounds like muttering and creepy singing to dull ears, giving such people the willies).
Previous ringtones include Funky Groove Makes U Hot and Bad Taste Aquarium from Sonic Adventure, Sneakman from Jet Set Radio, The Friendly Faithplate from Portal 2, Chemical Plant Zone from Sonic 2 and Rufus' Theme from Super Street Fighter IV, among others long since past I've forgotten.
Other text tones include The Fragrance of Dark Coffee from the Ace Attorney series, Sea Breeze from Metal Gear Solid 3, One of a Kind from Bayonetta and various other things.
I've had various chilled evening alarms - Midna's Lament from Zelda, Wading Through The Bodies from Killing Floor, a sample from the Persephone Numbers Station, and the saferoom music from Resident Evil Remake.
