A simple but great clone of the 1985 tank shooter game by Namco named Battle City.
In this game the player controls a soldier instead of a tank and needs to kill all the enemy soldiers attacking from their green base object. While the attack waves are going on player also needs to destroy enemy base and defend their own. As a good feature of the game the brickwalls of the labyrinth-like places are destroyable.
The Universe of Commodore 64 