In this game you play the role of a time lord who has to travel through time in order to stop time travelling aliens from changing the earths history. The Game play involves you fighting off aliens who are dressed like the people from the various time period that you are in. The weapons at your disposal vary depending on what point in time you are in. In order to travel to another time zone you must find 5 orbs which are carefully hidden around each level and require some puzzle solving and platform jumping to get to. Time in this game runs by very fast and you inly have until the year 3000 to complete the game otherwise the world will be blown up.