I love how simple the mechanics are but how there's still a lot of variation. Well done! You could definitely turn this into a bigger game.
I found one bug though. In the level with the ground pound instructions, I got stuck after landing on the edge of the lower platform. Walking and jumping stopped working and I had to start over from the beginning.
By the way, showing level numbers would make it easier to report bugs and give more specific feedback. I understand that not showing them is a stylistic choice but you could just put the number on one tile in each level so it would fit the style you're going for.