There is a tutorial but I don't think I explained the mechanics of the teleport well enough. You are sort of meant to rely on the teleport mostly and only walk to get in range of neon lights, but I should have designed the levels better to incorporate that.
The gems were a last minute implementation which is why they don't work that well.
Tbh I'm not really sure what i was thinking when it comes to how the background moves. It is tied to player movement because I wanted it to have a 3D-esque perspective kinda thing, but it didn't look that good and I didn't change it for some reason.