Thanks! I went back and forth between either an inventory of unlimited size, or a really limited one. I ended up going for only two slots to discourage hovering up everything and push the player to move forward.
I'm glad you got to the disco level. I put a lot of time and thought into that one, but I feared I put it too close to the end of the game. I'm not surprised it has some bugs, there's a lot of last minute spaghetti code in that level. I'll try to use your report to figure out the cause and fix it. Thanks for letting me know.