Hammer Boy in a game based on the essentials of HAND HELD type machines, easy to use, simple but highly addictive. The computer version also includes graphics of more quality, color, sound, and music that accompany the game.

Hammer Boy has to defend himself against hammer blows from the enemy invasion in each of the scenarios in which the action takes place.

Once the enemy or the object that will penetrate our fortress is within reach of our hammer, the blow will end it. If a greater number of two enemies enters (in the Spectrum, Amstrad and MSX versions) or five in the other versions, our strength will be conquered. The same number of objects thrown that penetrate will make us lose a life.