Destroy dangerous prouns and defend the reactor.
Numerous research labs with mio-reactors have plunged into chaos after destructive diversion. Experimental 'prouns' (the shock-resistant bio-generator of mio-radiation) have not suffered, but have lost the control, and now death danger of powerful explosion threatens entire complex. Only one surviving service robot, Deactivator, is the last hope for rescue. In Deactivator's arsenal there are small mines with the timer. Its is harmless to the prouns, but dangerous to owner. The mines destroy boxes and block a way to prouns. Deactivator enters unequal fight.