In All-in-Gun you shoot to move. Almost every action in the game is done with the spacebar. You'll be faced with 30 levels filled with enemies ranging from simple cubes that follow you to rocket launchers. Every 10 levels you can choose an upgrade, which makes the game easier.
There is also a competitive multiplayer mode. so you can play this game with a friend. Your friend then uses the enter key, or the right side of the screen if you're playing on an Android or iOS device.
You can also change the graphics quality at any point by pressing 1 for the low preset or 2 for high quality settings. It is set on low by default. But everything else is controlled by the spacebar or the left mouse button.
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