Purmoil

This is a demake of a game called Turmoil from various 8-bit computers.

The gameplay is a 2D Tempest, you quickly move around 7 grids and shoot incoming enemies.

Sometimes an enemy called 'Prize' appears at left or right bottom. if you release fire button (I did this because I hated unintentionally moving horizontally when playing Turmoil, and it gives a bit more depth to the gameplay as you shouldn't hold the button all the time.) and move the ship to it, you can earn big points. but if you don't grab it in time it will turn into a Supersonic Cannon Ball.

press left or right to select starting level from 1 to 9.