Credits are the main noun to consider here. i earn them by blasting aliens in space to upgrade ship speed and firepower.
Start by moving your ship with the joystick, you must defeat alien waves to earn credits for upgrades.
You use a joystick to move and shoot. The buttons are for firing weapons and using boosters.
Focus on upgrading speed first, then firepower. Using boosters at the right moment saves your life.
Q: How do i earn credits? A: You earn credits by defeating enemy ships and completing stages.
Q: What are the controls? A: Use a joystick to move and shoot, and buttons for firing and boosters.
Q: What is the main objective? A: The objective is to earn credits by blasting aliens.
Q: What is the main mechanic? A: The main mechanic is using credits to upgrade ship speed and firepower.