Fun bullet hell stuff. I really couldn't tell if there was a reason why I should be the letter instead of the paper airplane at any point in time. I also found the health bar really confusing to read, it definitely needs more contrasting colors to help convey what color represents the amount of health you have and what color represents the background of the bar. Movement could have used a liiitle bit of acceleration, as that helps you make fine adjustments to your position by tapping the keys, which is important in a bullet hell like this. And I thought the speed of the player's projectiles could have been made a bit faster, but I have a thing about slow moving projectiles lol. On the topic of projectiles though, they player's projectiles need to differentiate themselves from the enemies' projectiles through more than just color (although the colors need to be made more distinct from each other as well, and should probably contrast against the background a bit more too). Nuclear throne (my personal favorite bullet hell game) does this by making the enemy projectiles a round shape with a deep red color, and the player's projectiles generally rectangular with a bright yellow color. No way you can get them confused there. Other than those things though, I really liked this! I thought movement and enemy projectiles were at a good speed, didn't feel too slow, and I thought the difficult ramped up quickly enough to keep my attention, but not so fast that it became immediately overwhelming. There was also an impressive number of different enemy types with pretty bespoke abilities. Very well done!