Very cool and moody! My favourite thing was all tutorials being phrased as memories, makes them feel way more immersive. One thing that annoyed me was that due to Ctrl being crouch, and movement being WASD, I ended up pressing Ctrl-W a few times and closing my browser window. Luckily saving worked even in the web build, so I didn't lose too much progress. I really liked the setting and the progression, using the Pogo to skip some of the UFOs was fun. I think some points could've used more checkpoints (like prior to the room with many UFOs), and I maybe was expecting a bit more from the ending, but overall, I really enjoyed this. Nice job!