And by 5 games I mean all copies of said game.

Be it because you think they're atrocious, because you think humanity/gaming/some franchise would be better off without them or for any other reason.

I'll throw a list:

Assassin's Creed 3 - Disgrace to franchise.

Tomb Raider The Angel of Darkness - I payed full price for this piece of shit when I was a broke teen.

Final Fantasy X-2 - Tainted my love for FFX and will haunt me forever. I fucking 100%ed too, wanting it to be good...

Haze - My cousin has an ability to only purchase turds, we played this together. Humanity won't miss this.

Call of Duty Black Ops Declassified - At the time, a red alarm that Vita's destiny wasn't too bright.

Zelda CDI, Mario CDI, Wii Music, Duke Nukem Forever, FF XIII: LR

Phoenix Wright: Dual Destinies. Oh, wait a second.. (sorry Japan)

Two for sure. Eternal Eyes and Monster Seed. The two worst RPGs ever imo.

Metroid Prime 3
Super Paper Mario
Super Mario 3D World
Zelda Majora's Mask
Dark Souls

LA Noire and Colonial Marines are the only ones I can think of.

And I would bury E.T. again. Horrible game. Only Bugs on the Atari was worse but no one owns or remembers that.

You would piss off most gamers with these. I like it.

Dual Destinies was fantastic. At least as good as the first and miles ahead of 2 and 4.

Sonic Adventure 2
Metroid: Other M
...

Actually, that's it.