Nice concept and fun base gameplay! There's some bugs you're probably already aware of to work out, but i think the challenge of figuring out how to deploy teleporters throughout the level to get through it is a fun one and it was balanced well. The self-chosen level of risk/reward based on where you place the teleporters is nice and I like the choice of upgrades at the merchant too.
I think if the teleporter itself was a trigger instead of a collider that would help the experience cause I daisy chained my second set to the first set and put 2 teleporters really close together, and then kept getting stuck on them whenever I teleported in between those 2 teleporters.
Cool idea, and good job!