Biggest "what were they thinking?!" moment in games?

[beniki]

Assassin's Creed 2 right at the end.

I don't get why they had to go in that direction. I mean seriously, I can't stab the sun in the back, how's an assassin supposed to solve this?

 

[Wondermint13]

When Soul Calibur teamed up with Starwars. It just threw the last ounce of dignity its story had by having Yoda and that f***ing apprentice twat twat twat into the game.