This was absolutely brilliant, im going to have to echo Mark that you also made sure the levels Grokked with the concept and gradually drew the player into using more and more abilities, kind of like original 1986 Metroid gradually taught people to use bombs and then the high jump boots. (I know this viscerally because I was growing up with these games in the 80's at the time).
Therefore this high rating is heartfelt. Gave you an itch follow, if you like the thing (s) on my page(s) consider doing the same. Brilliantly done!
--D
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