A Circle Among Squares

You're a circle. You're the good guy. But you're surrounded by squares. Some are irrelevant. Others are useful and/or annoying. Then there are the black squares. They want to kill you. They are the bad guys. Be a good guy and pulverize those baddies, will you?

Survive and shoot all enemies in 200 levels (or make them shoot themselves). Each level cleared opens the next one permanently (autosave). Enemies come in a variety of types, speeds and action patterns, while other squares do a multitude of things, ranging from reflecting bullets to teleporting you. Enemies are killed with a single hit, and so do you. Failing a level has no consequences. While the first levels are easy and often, very quick, difficulty increases greatly in later levels.

Game Elements

This is you. You shoot in the same direction the arrow is facing.

This is the floor. Anyone can move freely above those squares.

This is the bullet you shoot.

This is an enemy. The rectangle indicates the direction it will shoot.

This is an enemy. It shoots in 4 directions simultaneously.

This is the bullet enemies shoot.

This is an enemy. Instead of shooting, it may kill you by touch.

This is a block. Nothing can pass or destroy it.

This a reflective block. Nothing can pass it and bullets are reflected.

This is a selective block. Only enemy bullets may pass it.

This is a selective block. Only bullets coming from the same direction the arrow is facing may pass it. Has 4 variations.

This is a reflective/deflective block. Depending on the direction of the bullet, it may turn 90º or be reflected. Has 4 variations.

This is a teleportation square. It always comes in a single pair and only you can step over it.