Uhh, a couple.
I remember getting Valkyrie Profile: Covenant of the Plume a few years back on the advice of a friend, but I've never really wanted to try it. I got given Wave Racer: Blue Storm with my GameCube as well, which I've never cared for either. I've also got Devil May Cry and Devil May Cry 2 on PS2, but aside from a cursory one-time trial of each I've never been too fussed about them. I kind of got them to complete my collection really, especially after enjoying Devil May Cry 3 so much.
I've got a few from various Indie Bundles as well. I buy most of the Bundles because it's a decent way to support charities and indie devs, but I definitely don't always want the games. For example, Anomaly: Warzone Earth, Botanicula, Cogs, Depths of Peril, Fieldrunners, Gratuitous Space Battles, Harvest: Massive Encounter, Machinarium, Oil Rush, Samorost 2, The Ship, Space Pirates and Zombies, SpaceChem, Spirits, Unstoppable Gorg, Uplink, Vessel, The Void, Windosill, Wizorb and Zen Bound 2 are all stuff I've got from Bundles but I'm not too fussed about playing.