Impressive entry! A few cut corners but pretty polished overall. The lose-your-abilities angle was a fun surprise, and I was impressed how it was incorporated into room design.
The simple visual style worked pretty well, except for a few times when it was unclear whether something was a pit of death or a room connection, and a couple rooms where it wasn't clear what was a wall and what wasn't.
Pretty good level design and a lot of interesting environmental hazards. I mostly enjoyed traversal, but I found some of the backtracking tedious. I didn't particularly enjoy getting back out of the bottom right corner, for example.
Controls were fine, though I wished I didn't have to use the mouse. Ladder felt slightly glitchy at the top. I'm not a big fan of ladders in general, but it was fine.
Were the teleporters single use or do they just turn off at the end?