Space to shoot. Either A and D or 4 and 6 on the calculator thing on the right of the keyboard depending on whether you are left or right handed (can be changed in settings). Q to enter and E to exit the shop. Click on play to open play and settings to open settings. Click on upgrades in the shop to get upgrades once you have the required currency. Finally, dodge asteroids to survive but shoot them to gain points.

{no install notes given}