Well this is pretty darned addictive! And well-polished too, the fading square as a timer during the teleportation is good feedback.
As others have mentioned, the procedural generation can be a bit harsh. This was probably beyond the scope of a jam, but if you want to keep working on the game then ideally the difficulty would start off quite easy so the player can get a feel for the teleportation without spikes around, and then things can ramp up the further they make it.
The visuals and music work nicely together for a fun experience, and the game has a good trickiness level once you get used to it. Like I mentioned, ideally the beginning would be a bit more beginner-friendly. Really well done! :D