My wife and I like to play video games together cooperatively. Generally, she plays the exploratory parts, and I play the parts the require quick reflexes. Recently, we've been enjoying a game called iNinja for the GameCube. (Thanks Ben Bangert!) As we neared the end of the game, we reached a level called "Egg Shell Skull" that seemed impossibly hard. We each spent a couple hours trying to beat it, but to no avail. It required 100% accuracy, very fast reflexes, and a little bit of multitasking. I could "program myself" to have fast reflexes with high accuracy, but every time I mixed in the multitasking, my reflexes went out the window. Finally, I had the idea of playing the level together. I used the left side of the controller which involved ducking with 100% accuracy and very fast reflexes, while she focused on the right side of the controller which involved planning, combos, and monitoring a timer. After several tries, we finally beat the level :)