Using a wind-up motor from a vintage LEGO model, I’ve made this little bugger fully motorized! It’s actually not as fast as the video; it’s a bit slower, so I sped up the footage for timing and comedic effect. Otherwise, the Bombchu crawls at a relatively steady pace. To answer your questions, no, it does not explode nor leave a glowing red streak behind it. I think I might build a few more of these and take ’em down to that bowling alley with the cute purple-haired chick.