When you export a project there is a check mark in the lower left corner, btw, you can skip a level in the main menu by pressing esc.
Awesome, I'm glad you added that feature! I went back and beat every level I could, the only ones I had to skip were 4 and 11.
Now having played the game more I can give you some better feedback. I don't know if this would go against the core of the game but it might be good to experiment with having the worm control like in the game snake, where it's not a physics object but it just follows the path of the mouse. Also I beat most levels by rushing to the end before the bullets spawned lmao, don't know if that's an intended strat. Also I now LOVE that pause mechanic, I felt so cool when I would make my way through a storm of bullets by freezing time. It is super intuitive too
PS. thanks for the tip