The object of the original Arex game was to erase the entire bar to the
right of the screen. Every dot you ran over shrunk the bar. There
were enemies roaming the maze area, which you needed to avoid. Savvy
players could trap the enemies, turning them into 'faces' (we actually
called them beans, since that's what they looked like - beanification)
additional enemies "beamed in" as 'pods' that bounced around before they
turned into enemies. Running over a pod netted points, and prevented
the enemy from 'hatching'. The pods also erased any part of your trail
that had been run over by the thing that chased you if you sit still too
long. If you messed up a maze, the only way to finish the board was to
let the trail get run over, giving you more places to move to.
Cheers!
-Ken Schafer