Proof of Destruction has a unique way of player movement and strategy, but has simple enemy AI.

[3] A player spaceship(s) can move freely horizontally and vertically on a fixed grid that fills the whole screen, using the keyboard or a joystick.

The grid, however, gets damaged by enemy bullets which prevent the player from moving over them during a short period of time.

In the basic levels, enemies usually enter from the top of the grid and move horizontally, lowering one line at a time when they reach the side of the grid and reversing their direction, slowly closing in on to the player spaceship.

A player spaceship can fire off bullets only in one direction, namely upwards, trying to destroy its enemies.