I doubt I'll be finished by the 20th, been busy irl. But I can put out at least a 2-3 level "demo" of it. Or I'll just make a sequel game afterwards.
Anyways, I have a screen:
Currently the player (that dog looking thing), can jump, dash, punch, and backflip.
I have some cat enemies with simple AI, and the next step is adding some snake enemies that come out of those sand piles there. I also made a balloon cat that bounces around, but I'm not sure if I'll use them yet.