DISCLAIMER: I had to run your Windows game through WINE to get it to play on my Linux computer. Any problems that I encountered may not apply to the game itself.
It’s not a bad platform game, and the closing walls create a sense of urgency… but I got stuck on the sides of the white walls a lot. The maroon walls in level 2 also seem to be broken; they didn’t damage me.
I will say that you should use a different colour for the springboards. A lot of people, including myself, may think that their red colour would indicate that it kills.