Add the asteroid and baddie to the level.

I'm going to need to work out how to have a single entity repeated.

Next comes making the ship move. I'll give the player a button to reset the game state.
Start making things move.

The ship moves up because of a constant force.

The asteroid rotates because of a constant torgue.

The camera follows the ship because of a script.

Perhaps the ship and asteroid movements should have also been scripts?