Played on Series X. Using this ship you can kill the final boss in around 12 seconds as shown. With other ships it can take a while. Here is how to unlock the ship I use here:
Unlock R-9A3 Ladylove :
Go to R-museum after unlocking the R-9A2 Delta and click the next spot of the tree. Then enter this passcode:
loveandpeace
There may be other ships that can do similiar shit but this clearly works. I will include this in the upcoming tutorial. Im still deciding when to try the hardest mode, since the game crashed on me twice on the final stage making me restart the game. I may do the tutorial on the hardest mode depending. I will have the normal playthrough up soon, unedited and edited versions.