I'm sorry, that it was confusing. I knew, that it would be, so I originally planned to make a tutorial level, but didn't make it in time, due to my bad time management. So in the end, I just had to rely on people learning how to play by replaying levels a bunch and looking at controls and manual at itch.io page.
Still, I'm glad, that you figured it out and was able to enjoy it, despite its shortcomings. Thank you for playing and liking the game!