I've added a description of the controls to the game page.
The character feeds in the direction of the mouse.
To pick up a weapon, you need to press the "Е" button, if you already have a weapon, then it will be replaced by a new one.
When the weapon is in your hands, press the left mouse button to shoot.
If we want to throw away weapons, press "Q".
"R" - This is a level restart.