Apparently Valve has employed the guys behind this "game"
https://www.digipen.edu/?id=1170&download=1506
Try it out, its excellent and much better then Narbacular Drop(spelling) imo.
The paint feature will be used in Portal 2.
source:scans
https://www.digipen.edu/?id=1170&download=1506
Try it out, its excellent and much better then Narbacular Drop(spelling) imo.
The paint feature will be used in Portal 2.
source:scans