That would be Avatar : Last Airbender Burning Earth
Reasons:
-insane difficulty curve
-stupid save system
-all powerful character neutered unrealistically
-Very little incentive to complete (all game achievements can be EASILY gained in first 5 minutes)
-Poor animation (The character's mouths sometimes move, sometimes dont when talking.. basic stuff people..)
I'll explain the neutering point... There is a part where you are on the Bei Fong estates and you have to reach Toph in the house, and a maze of shoulder-height hedges is in the way, with archways dotted in it, patrolled by guards. The idea is you have to sneak past the guards... Now, here is where I get irked, because frankly, YOU'RE AANG! Almightly last airbender... and you cant hop over a small box hedge?! I get they wanted a stealth section, but any player with a brain will go, WTF at this...