There's was a Speedrun contest here the other week with Double Dragon.
http://www.gog.com/forum/general/double_dragon_speedrun_contest_c2718 I dunno what happened with it. I guess Bimmy up and died.
tinyE: Every once in a while programmers will throw in characters getting bored from the player's slow style (I think MegaMan was the 1st time I ever saw this). Anyway I've become quite accustomed to seeing it. I love it in Tomb Raider Anniversary when I can make Lara yawn. :P
I'm playing through American McGee's Alice and I was fighting the Jabberwock yesterday. Before he appears I'm contemplating how I can beat him so I just leave Alice standing there idle holding her croquet mallet weapon - suddenly the camera whips around to face Alice, she looks right, then left, then grips the mallet in front of her with both hands, kind of winds up, and then conks herself in the head! Funny stuff.