The game is quite entertaining, with a key-and-colored-door mechanic that makes you think a bit. Although the background is a bit simple, I like the character animations and art, as well as the animation when you complete a level (that’s the one I liked the most). What I think could be improved is the camera transitions when moving from one screen to another, because with the character’s speed it was difficult to jump between platforms on split screens, which made it a bit tricky. I also found a bug in the level “the 3x3”: if you take the red key on the right and open the door on the left that has a yellow key above it, then jump to the screen below, you can pick up a green key and open the red door on the right.
Finally, regarding the music, it’s a bit odd that only the first and second levels have music. The first level’s music is a bit noisy, but I liked the second level’s music because it gives that thoughtful touch.
In conclusion, I find the game quite fun and entertaining for a good while, and the concept is also very creative.