This is a port of an old ZX Spectrum game called Sheer Panic (or Panic) which was a version of the old arcade game Space Panic.
This is just an initial attempt at it. I think I have got everything in there though.
The idea is to kill the monsters by digging pits in the floor and then knocking a monster down when it falls into the pit. More advanced monsters need to fall a larger distance to be killed.
Arrow keys to move around
X to dig
Z to fill
(Updated to remove death message and go back to menu)