I like the concept of looping around the levels and bullets being able to loop with you.
I ran into a bug where I got lock to the top of the screen and wasn’t able to loop anymore, was able to kill the enemies but the level wouldn’t progress.
It's seemingly a rare, unfortunate bug. You could always try again assuming you didn't make it too far into the game, I'd be shocked if you got it to happen a second time back to back. I understand if you don't though. :P