Contraption Maker — Tim's Fireworks

Contraption Maker is one of those games that rewards patience, lateral thinking, and a willingness to watch a ball bearing fall in the wrong direction forty-seven times before it finally goes right. This is a solution to the Tim's Fireworks puzzle.

No commentary. No tutorial. Just the machine working exactly as intended, which is more than can be said for most machines.

The satisfying part is not the fireworks at the end. It's the moment everything clicks into place and you realise the whole thing was inevitable all along.