PictoRobot is a platform game in which you control a robot capable of shooting paint bubbles.
Each level represents a hidden image: its colors have been replaced by numbered squares on the walls. You will have to explore the levels to reach all the numbered walls and color them with the right paint bubbles.
Many levels are available.
https://store.steampowered.com/app/3174110
A bundle of the 2 games at a reduced price is also available:
https://store.steampowered.com/bundle/47035/