New Super Mario Bros 2
Pushmo

Never did finish FFV. I got stuck trying to kill some crystals or something, got discouraged, and never returned.

If I don't win the Lottery I'm never going to get through my back log of games. Being OCD, that's pretty much every highly rated game ever made.(7 or >)

Even if I played every game I ever wanted to, which are admittedly mostly only on Nintendo consoles, by the time I finished I'm have a massive backlog from this generation.