ONE BOSS FIGHT

In case you don't want to read the tutorial:

ESC to pause

WASD to move

SHIFT to dash (requires stamina but gives iframes)

1, 2, 3 to change weapons

Mouse to aim weapon - M1 to shoot, M2 to block

You have to face the direction of the attack to block it

Only yellow attacks can be blocked

Blocked melee attacks fill up STAGGER meter: 5 blocks trigger a STAGGER 

STAGGERED boss takes double damage

glhf