Good game! You managed to make a difficult shooter, which is impressive. Here's some things I noticed:
- When I first spawned in, I was a little disoriented and jumped backwards off the map, so I had to manually restart
- The slowness of the bullets increases the difficulty of the game alot, making you adjust and set it apart from other shooter games.
- My frames started to suffer heavily about two thirds of the way into the fight.
- There are some quality of life things that could be added to indicate to the player what is happening. Is the white outline a shield? Make a sfx for the shield breaking and regenerating to signal that. Is the enemy shooting? Make some sfx for the enemy shots (I did not even realize the enemy was able to shoot until my third time fighting them). New minion spawns in? Sfx or icon. Does your player get hurt or hit the enemy? Give some more feedback through visuals and sound. All of these would greatly improve the game.
All in all, good job! It took me three tries to save Patient 71 (is there a reason they are patient 71 and not 73?)