I enjoyed the game for the most part, I would change the difficulty a bit reducing the amount of bandages needed to stop bleeding, reducing some of the enemies accuracy and their grenade spamming also decrease the bullet spread

The last part was fucking awful terribly designed I felt a lot of frustration
A boss fight your supposed to go through portals and shot the guy with a gauss rifle it's the only thing that does damage the thing is when you go through these portals there are enemies on the other side that also spawn and their accuracy is immaculate so I would sometimes die instantaneous other times I would die from a grenade at the other side of the teleport also enemies teleport behind you
When I got to the last teleport the boss was out on the field I shot him and did no damage apparently if you quick save and load a bug will occur making the boss invincible

I had to fight him the cheap way by shooting with the gauss rifle without using the portals the other enemies ignore the player it took me two attempts though