I really like this game. It was a lot of fun. It reminds me of the Abe games. I agree completely with TheSergalLass abut the third level being too difficult. Less so about the jump height.
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I assume they are referring to the Oddworld series of games, Abe's Oddyssee, Abe's Exodess, and Munch's Oddyssee which were originally released int he 90's. I honestly didn't make it beyond the tutorial as I got tired of restarting every time I got caught or missed a jump, but from what I played it didn't feel much like the Oddworld series, personally. But, again, I didn't give it much time.
The aspect ratio is also off and whatever is on the bottom right (I assume sound and music sliders) is cut off for me, by the way.
For the record, I'm not implying your game is bad, I just suck at navigating platformers with a keyboard and my gaming controller broke.