Super fun idea, and very well executed. Simple and to the point. The last level definitely had me thinking for a few minutes, and I would have kept playing if there were more levels for sure. :D
I don't really have any feedback, you did the concept justice. :) Doing more with the plot could have added a juicy layer ontop of the neat gameplay, but that's easier said than done in a game jam haha.
Well done overall, keep it up :)