Elation, sadness, calm, rage and confusion; these are the tools Mush uses to propel its puffball protagonist through colorful platform puzzle-worlds. Strange that all I feel while playing this award-winning Windows Phone 7 game is joy.

MUDs and MUSHes, remember those? These were the first multiplayer online role-playing games, popular in the 1990s, largely text-based. In the case of a MUSH, playing involved writing thousands of words, a skill that's proven useful later in life for some enthusiasts.