[Android] Sinky Ships - Get out of a sinking ship

I'm a solo dev and had been working on this game for 5-6 months now (part time). The game's goal is to get out of a sinking ship while the water level is constantly rising, collecting as many stars as you can on your way out. New levels and character upgrades can be unlocked using the collected stars.

Any feedback is most welcomed, even if it's negative!

I'm most interested in how you like the difficulty, the controls, the graphics, if it's overall a fun experience and of course if you would play with it normally.

Screenshots: https://imgur.com/gallery/ITJl2aE

Download: https://play.google.com/apps/testing/com.YourCompany.Hajo_proto