After some tries I managed to kill the first boss once, then the game went on and I died before a second one appeared so I don't know if it was going to be the same or another but I'll stop for now.
The game is so snappy! Between the presentation and these enemies which pop in one hit it's one of the games which feel the best to control in the jam, and your overall use of the theme is also one of the best. Trying to control the oil the best is fun and the boss fight is also super fun with the appropriate difficulty for the jam.
I don't know how much of a deliberate choice it was to make both types of slimes red, I would have preferred if they were of a different colour.
Thanks for sharing!