The Gerbil Experiment

The Gerbil Experiment is a 2D Puzzle game where your objective is to reach the exit by clearing various obstacles using items and colors in the correct order.

Gameplay
Use various methods to enter different rooms using items like keys and paint to open doors.
The challenge is to determine in which order and with which items and paint you enter the room.
Not all levels are required for progression, so you can come back later if you are stuck on a particular one.
There are no time limits and progress is easily saved.

Difficulty and Levels
There are 2 different modes with 3 difficulties, each with 100 levels for a total of 600:
- Color Mode 1 (Mix): A white key can open any door as it contains all colors, while a black key can only open a black door.
- Color Mode 2 (Exact): A door can only be opened with a key of the same color. The same applies for the barrier between rooms.
- Easy: Smaller levels and few combinations of possible moves.
- Normal: Medium sized levels with several combinations of possible moves.
- Hard: Medium to large sized levels with a lot of combinations of possible moves.
All 600 levels are unique.

Features
There are 9 relaxing music tracks to listen to while you play.
5 different visual themes that can be adjusted or randomized.
Game can be played with only keyboard, only mouse or a combination of both.
Rewind in case of mistakes or use a quicksave to try different things from a certain point.
Fullscreen or windowed mode with zoom in or zoom out in game.
3 different primary color settings (RGB, RYB or CMYK).
Turn colored items temporarily into text in case of visual difficulties in determining the color.
There are optional settings for exchange of the colors, mirroring or rotation of the level to make the level look different on different attempts without affecting the solution.

Other
PS4 and Xbox360 controllers were tested, but may not work for all hardware, so it is not guranteed to work.
There is no story and there are no rewards/achievements.