Control the position of your fighter using WASD for directional control.
Independent of your movement, your fighter aims at the cursor (position shown with crosshairs) and will rotate to face towards it.
Hold down left mouse button to fire.
Escape to pause, F to resume and advance through menus.
Shift+R to restart the game.
This game is best played with a keyboard and mouse. Control with a trackpad is technically possible but not recommended.