Algodoo

it needs to have a collision group, so it does collide with something. a hardcore N-gene could be collision-less.

Its not new technology but the presentation and the fact that you used lasers, which i personaly have not seen before makes it really cool. 5/5

I descovered this idea about the time when you published this engine.

if you mix then engine here with a regular air engine, ( scripts something like e.geom.density=2; e.geom.airfrictionmult= 1000000000, then the opposite on the other laser), you get a super air brake that gets stronger as you put more weight on it, i don't know why, but you do