Killer Gorilla is a very well written version of the arcade game Krazy Kong. Having only watched the arcade game and not played it, I found the game both compelling and difficult.
The game revolves around trying to rescue a maiden from the reaches of a gorilla, and to do this you have to negotiate a series of ladders, conveyor belts and walkways whilst trying to avoid the fireballs, barrels and many other objects.
There are four different screens in all, and after completing the fourth screen, the game restarts but is a little different than before.
As an avid games player I would strongly recommend this game to anyone (although the key layout requires three hands!) because at its low price it is certainly excellent value for money.