This was a tough checkpoint. I eventually got through. This is from my 2 hour session today. I tried this part another time as well. I had an issue with my 8bitDo M30 controller where it would hold random inputs at random times and get me killed, driving me into shit. I ended up switching to my original sega saturn controller for the boss at the end. The boss was also multiple forms and very difficult. It took me around 2 hours today to beat this checkpoint and the boss of the stage. Still working on completing this game. What makes this game much harder is the grainy fucking visuals. Not nearly as clean as 2D Rtype games. Hit detection isnt always as easy to guess.