I got through about 4 teleporters. I see the risk of rain influence, but it needs a lot more time to bake before it can compare. That said, I do think risk of rain is a good learning game to copy, as a project to learn an engine or making one.
A big thing is working on clarity for the player. Like for the laser, it'd be good to have some feedback on the player that tings are firing. Also different sprites for the laser impact, and the orbs that orbit you. Just stuff like that that makes it more clear about the action -> reaction that comes from players actions.