Woah! The main mechanic is a really nice and innovative twist on the whole theme of 'you're not alone'. It is a tad bit too challenging. I get that game jams introduce time constraints, but maybe you could implement a smoother progression of difficulty? i'm gonna have to give you 5/5 on graphics and 5/5 on innovation. I loved the pixel art. I also did pixel art.
If you don't mind, could you check out and review my game?