After choosing either Rivet, Sgt Serge, Stonewall, Rock-O', Drayko, or Yama, and picking a set of armor from the options of Thunder Strike, Ambush, Night Raid, Dune Tracker, Shadow Jonin, or Fire Chunin, the game begins. There are five unique worlds with four levels each: Military HQ, Frightful Forest, Desolate Valley, Hidden Tunnels, and Cloud Peaks; the rest are unlocked after completing Military HQ 4. Every level, except for Boss Levels, has the same gameplay of loop of traversing through the stage until you find the Skull Tribe banner at the end and destroy it to progress.