Thank you, I'm glad you like it!
You're also the first person to mention the "death by being crushed".
It's a pretty rare way to get a gameover but I really liked making it, and I know that Ménure I had a lot of fun making the gory sound effect!
I agree that level 2 is not the most obvious level, I should have added more indication for when the specimen is about to pop, but I didn't have time to make it look good. I'm really happy that you could figure out the rest of the game easily thought.