Unlockables
     Complete  each  of  the  following  achievements below to get the
allotted gamerscore.

Unlockable:                  How to Unlock:

Mission All Completed (10G)  Complete all the missions

All Completed without 
Continue (25G)               Complete all the missions without continue

Point Hunter (20G)           Achieve over 3,000,000 points

Mission 1 Master (10G)       Complete Mission 1 without any miss

Mission 2 Master (15G)       Complete Mission 2 without any miss

Mission 3 Master (20G)       Complete Mission 3 without any miss

Mission 4 Master (20G)       Complete Mission 4 without any miss

Final Mission Master (40G)   Complete Final Mission without any miss

Save President (10G)         Save President in the mission

Hyakutaro Ichimonji (10G)    Save Hyakutaro Ichimonji

No More Weapon (10G)         Complete any mission, without getting 
                             power-up items

Strong Zombie (10G)          Defeat the Boss Enemy 
                             while the player is Zombie