Take on the role of Jaguar, a synthetic human scout sent by Earth to retrieve information from a human research station to find out why it was overrun by hostile, alien natives years before.

Navigate maze-like levels and escape with the objectives before the aliens can overpower you. Time your movement and watch your ammo counter as enemies swarm around you, preventing an easy exit. Find and use various weapons and powerups scattered throughout the research station to aid you in your fight.

Compete against other players for the highest score on the online rankings board. Types of aliens are worth different points and pickups can be found to boost their value.