Yea, this is the shit. Great job implementing the theme, I like the puzzles, feel very coop, with a single player lol.
The puzzles are a little finicky, nothing horrible and nothing not expected from a game jam in 96, so kudos all the way around! Can totally see this being expanded on for a full campaign!
I would look at how to make things not seem tedious, like the gear acting weird for example, but everything else is great.