I was at the mall and noticed that the Vex robot kits were on sale for 50% off. That puts them into the ball park of “a little pricey, but close enough.” Of course, that’s before you figure in the cost of batteries and etc (definitely get the power pack). Anyway, 6 – 7 hours afterwards we’ve completed robot #3 (#1 was the default square bot, #2 was modified squarebot for playing soccer named Dozer). Here’s a video of “flip”:

This robot is 4wd using 4 motors which is difficult using the default programming. You have to use diagonal controller movements. Also, when he’s upside down everything works opposite of what you’re used to. Still, it was fun and he’s fun to show off.