Exploding Barrels

This is a small game made for the Sinclair ZX81. It's a funny old machine with a lot of milage, but it's simplicity and rather limited hardware poses a cool challenge when creating games for it.

Terrorists have infiltrated a chemical factory and have managed to plant bombs on multiple barrels containing toxic waste. You play as a MI5 bomb expert, who have to defuse the armed barrels before the bombs go off. If you don't succede in time the barrel will leak their toxic waste making it more difficult for you to navigate the room. Do I have to say that the stuff is lethal.

The games is played using A,S,W,D

For the techies, this game is written in Z80 assembly and assembled using sjasasmplus. I have tried to keep it under 1k, so it should work on machines without memory expansions