Seriously, I don't know what the second square is. Tell your own story about it. The only thing that is important is that you bring it safely to the marked point. There is no stuffed skill tree here. The only skills are your gaming skills. This is a minimalistic fast-paced shooter with a high level of difficulty, so you should start getting better quickly. There is no character building over the ages here, and no fancy variety of weapons. all you have is a rifle, grenade and unlimited ammo. It's not a circus, it's a combat :).
Features:
Infinite number of levels
Procedurally generated maps
One hit is death
Complete game reset after each death
Developed intelligence and reaction system of opponents
The difficulty of the opponents increases with the levels
One type of rifle - the same for the player and opponents
Unlimited ammo
The player can additionally throw grenades
The player is responsible for the second defenseless square