A very, very strong puzzle game. My favourite was probably the one cage with two locks - the solution was so goofy that it really made me smile.
I do think that, for the impressive amount of content, there's kind of an excess of mechanics. The keycard and the laser deactivation toggle are both pretty essential to the levels they appear in, but they logically serve the same purpose. There's also not really a sense of place - this facility has brick and mortar walls, and old timey victorian keys / cages, but also lasers and teleporters - although I appreciate that this game was made in an impressively short time, and that there's only so much of a "sense of place" you can get with 5x5 puzzlescript tiles. Looking forward to see what you do next :)