Press F10 to enable cheat mode. Then press one of the following keys to cheat:

Backspace Collect only 5 for an extra life
= Rapid fire mode

This game was pretty high tech back in '91. Today, Dark Ages seems a little dated, and gameplay-wise it doesn't have many innovative features. But for those of you who remember playing it back in the day, this will surely be a trip down memory lane. Supposedly (according to Apogee) the "first shareware game to include sound card and music support", this game is basically a straightforward jumping and shooting platform game with few surprises but generally tight controls and average, early-nineties style EGA graphics.