I got this crazy dude as a Christmas gift along with a beetle. I had fun with the beetle antagonizing it and moved on the this. WOW. Definitely the most fun hexbug I’ve owned since I got my battle bugs. It’s really fast and never just sits on its back. 10/10. I figured out how to remove the clear casing on the top of the bot and I got past they gray but that’s over the gears. Just unscrew the screws by the batteries and the ones on the gray bit and there, but I recommend at least leaving on the bit over the gears.