It's a good concept and the art and audio are nice, but it throws you straight into the deep end and I ended up trial and erroring the first level. On the second level, I think I got soft locked? I couldn't find a way to keep the button door open, and there was no explanation of how the checkpoints actually function (one just refused to activate?). The map didn't seem to offer much as well.
Unless I've seriously misunderstood something, or am missing an obvious solution.