Mario's Cement Factory C64

This is a Commodore 64 port of a Game and Watch classic. The player controls Mario working in a cement factory, where one has to make sure the cement carried from the top of the screen reaches one of the two concrete mixers on the lower corners of the screen safely. The cement can't go directly into the mixers though. It must first go through four tanks which Mario can open by activating levers. His task is to go back and forth between all four spots and release the concrete before anything is spilled. Failure to do so will result in dumping of said concrete on the truckers waiting to make their delivery. To reach the different levers Mario must travel between floors via elevators, which…