Tag is a game where one of the new mechanics of Portal 2 first appeared: Paint power.
It's a somewhat short game where you control a paint gun that uses 3 paints:
Green - Jump,
Red - Speed, and
Blue - Stick
Green paint allows you to jump. Putting green paint on walls lets you wall jump. Red paint increases your speed when you walk on it, putting green paint at the end of a red paint trail allows you to long jump. Blue paint lets you stick to any wall, but losing contact with the paint at any time will cause gravity to come into effect.
You have to pick up each paint can every new level, and there are various checkpoints in case you fall down. It's like a puzzle game mixed with parkour.
You can download Tag here:
https://www.digipen.edu/studentprojects/tag/I just beat it and had a lot of fun.
