Breja: I vote for Deadly Premonition. Has to be one of the most boring games I ever played.
Dust: An Elysian Tail sucks too, but I guess it's my hate for creepy anime and the insanely annoying voice of that flying squirrel thing that elevates it from boring to horrible in my eyes.
Sincere apologies for the necro, but, damn!, I thought I was the only one who hated Dust: An Elysian Tail. Honestly, I only ever see people praising it, how it's a one-man project, how the gameplay is so tight, etc. But I really -- I mean REALLY -- can't stand the furry artstyle. I don't even have anything against anime/manga, but in that game it just... looks so lazily made, like those early 2000 cartoons that relied way too much on digital inking and looked like cheap imitations of (actually good) anime. I guess my instinctive loathing for the furry subculture takes the better of me, as I definitely played a bunch of games with animals in my youth (Sparkster, Sonic, Jazz Jackrabbit, etc), but somehow none of those seemed like they were aiming for the furry community, and Dust so obviously does.
Oh, and, yes, the flying squirrel thing? Worst sidekick EVER in a video game. At least most annoying. I'd take Ocarina of Time's Navi over that thing, any day.