It’s fairly common for arcade games like this to start off easy and get harder over time. You could spawn asteroids more frequently and/or faster asteroids the longer the user stays alive.

Task Definition

  • Asteroids should spawn faster over time. Perhaps start the same with asteroids spawning every 2.0-2.5 seconds (chosen randomly) and then have the time between asteroids spawning reduce every so often as the player continue the game.
  • You could also add an increasing variable to the initial velocity of asteroids that spawn over time. i.e. If your asteroids start spawning at “Velocity 200” then every time an asteroid is destroyed, you could add one to that value.
  • If you have previously given asteroids health from another side quest, you could give asteroids that spawn later in the game more health.