Digger Dan

_Digger Dan_ is a Space Panic variant.

As in the original, the goal in each level (consisting of platforms and
ladders) is to dispose of all the monsters. To do so, Digger Dan must dig
holes for the monsters to fall into, then fill up the hole to kill the
monster. Four different kind of monsters with increasing intelligence exist;
killing the more devious ones earns more points. A new type of monster is
added every two levels.

Digger Dan