This is the old school arcade game Donkey Kong and it is the full version with all 4 levels just like the original from back in the days of yore. You play as Super Mario in this game BEFORE he was actually the Mario we know him as today. Of course where you have Mario, you must have a Princess and this game delivers. Dodge the barrels that roll down the stage and climb the ladders carefully. Time your climbs to coincide with Donkey Kong's tosses and you will have the most success. Climbing is very slow and the barrels can randomly fall down the platforms ending your hard fought progress. One cool feature to this version of Donkey Kong is that it remembers where you left off so you can come back later and play again.