When the level is complete? You mean, other than the flash and the text on the side that says "Congradulations [sic] you have unlocked the next level!"?
Errrrrr. plokmijn27 that's the reason for ratings. Small things can be detrimental to a game and in this case, alot of people agree that your allies AI is kind of tweaked. Don't get your panties in a mess over other people's opinions; if you like the game, you like the game.