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I don't usually enjoy platformers, but I liked this one. The levels are well-designed – challenging, but not frustrating, making them enjoyable to play. The art style is very cute, despite the overall bloodiness and brutality. Buying items makes sense, and even though the storyline is minimal, it's still interesting.
The only thing that could be better is the length of the game and more animations and artwork, but overall, I think this developer deserves your money more than, for example, the developers of Detroit.