A really fun and engaging platformer! I love the mine cart powerup, the movement options it opens up on top of the already tight and snappy character controller are brilliant. The music also gives a brilliant atmosphere to the levels.
But unfortunately, I was not able to finish the final level, I feel that adding some more checkpoints would have made it much more manageable. I also feel a bit of narrative would have helped in explaining the purpose behind exploring each level. But overall it is still a really fun and polished platformer, and I would love for it to be expanded upon.