The length of the game would probably be around 3/4 hours and it includes completing all the necessary tasks in order to proceed forward in the game.

If the player thinks its too short, he or she can indulge into the side quests or try eliminating more enemies to score extra points and power ups.

There will be some moments where Luke will be presented in cruntch time situations, for example to go to the next area of the map, Luke has to pass through a door which only activates upon the flip of a switch. Luke has to flip the switch and make it to the door either by escaping the enemies or killing them before the door closes.

Using his freeze abilities, Luke can freeze enemies for a particular time period before they can          break the ice and come out of it. This allows Luke to either escape them or to kill them. 

There is no particular time limit in the game except for the time pressure puzzles mentioned above.