Wow the simple visuals are deceiving, this is an excellent puzzle platformer with great movements (the zipline was very fun)! Everything is used and reused in smart ways, ans has multiple purposes, which makes for a fantastic level design.
I agree with the previous comment that the bomb is a bit difficult to see because it blends in with the background. I also almost did give up on the last level (but managed to do it). It was harder, more punishing, and more about doing and less about thinking so I enjoyed it less than all the other levels.
The polish is very good, I had a lot of fun, and if there were more levels I would play them. Well done!