> Quite a performance to reach 2 hours on that little battery.

Never perfect a game something to its theoretical limits, It stops being exciting.

https://youtu.be/0Yubn6P5DUw

Thank you! This is what I really wanted!

It's fascinating that you can get to the level of atomic material properties as a spinning top hacker. Diamond seems like it'd be the obvious winner, if you could somehow get a perfectly polished and smooth surface.

I'd love to see a small Prince Rupert's drop for a tip and a ruby/sapphire spinning surface - you'd need to make a ton of drops, probably, but having a round, nearly spherical contact geometry and super smooth surface seems like a winning combo.

This already exists- there's a class of robot called "meltybrains" which spin the whole robot using one or more wheel, detect the speed of spinning with a gyro and modulate the speed of the wheels at different points in its' rotation in order to create translational movement. Since they effectively put all the weight allowance into the "weapon" they can be very effective. The additional complexity means that they are hard to get working reliably in chaotic combat conditions. A team called "Project liftoff" had some serious success though.

This rules