I go back and play a lot of games I've finished, but almost never to completion again. Sometimes I'll open a new file and start for a few hours from the beginning or sometimes I'll go back into my near complete file and mess around or take on earlier levels again, which is what I do in a modern Mario game. What I do more often is revisit a game I've pretty much finished to get a high completion rating or take on post-game content rather than start from scratch, or go back to a game I never finished to start over and finish it for the first time. So, for games with one ending taking multiple play sessions to beat that I've actually played from start to finish multiple times...
Wind Waker/HD (4)
Minish Cap (3)
Ocarina of Time (2)
Link's Awakening (2)
Super Mario 64/DS (3)
Phoenix Wright (2)
Pokemon Silver/SoulSilver (3)
Puzzle Quest (2)
Custom Robo Arena (3)
Of course I did things like go after multiple endings in Chrono Trigger and 999... you have to! My list of first replays is increasing as more details about games I played 4-5+ years ago are becoming forgotten and I can restart them.
