This is a small little game I made for the PSP. The Submit Score feature only works on PSP Flash Zone though, so go there if you want to compete. You can easily download this game to the PSP and play whenever you like.
NOTE: This game is meant to challenge you and break down your muscle memory in order to help your brain function in new ways! I'm not a doctor or anything, but playing this game -should- make you more flexible in how you process information and discuss things.