The LEGO flip-walking vehicle looks like it has a mind of its own, but it is powered by gravity and a tiny motor. The custom LEGO build was inspired by the old-school Bear Mobill toy, which was made by Bandai in 1987. The original toy is supposed to be a military vehicle, but it has a new look thanks to JK Brickworks.
The trolley in the center causes the flipping motion. At the end of the track, the weight of the machine causes the build to flip over on two legs, resetting the entire process. The toy's unique flipping motion lets it climb up small steps and even go up an incline, as shown in the video.
If you want a more in-depth look at how to build this machine, you can check out the almost two-hour-long recorded livestream of JK Brickworks putting it together piece-by-piece. In the description of his design breakdown video, he notes that in-depth building instructions will be forthcoming.
It's interesting that such a vehicle exists, even though the machine may not serve any purpose and has an unnecessarily obnoxious way of moving. The 1983 He-Man dragon walker, which swings itself sideways to take a single step forward, is the only toy that gets close to this level of intrigue.
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