Armed with only two grappling hook launchers, you must scale up towers of increasing difficulty levels and defeat the monsters within. You will need to use strategy to avoid falling lava, giant spiders, slithering electric eels, toxic goo sprayers, track mounted saw blades, and much more.
Levels are randomly generated and will never be the same. The only assistance you will receive against the onslaught of tougher and tougher challenges will be the treasures that hide inside the top of each tower.