Defender

Freeze trick - Get all 10 humanoids, coast to a stop, and set them down (all at once). Make sure no other ships are on the screen when doing this. If the “500s” are not changing color, then the trick worked. Hit THRUST to cancel.

”Reverse” lines are hidden in the landscape for Mutants and Swarmers.

BUG: Extra ship glitch - On a game with extra ships at every 10,000, when your score is between 990,000 and 1 million, extra ships are awarded every time something is shot or if your ship is destroyed. On a game with bonus ships every 12,000, the glitch stops working short of 1 million.