Arrive at Lost Desert.
Buy all weapons.
Kill a zombie helmet using the pistol.
Step on 15 Zombie Arms in a single Horde.
Improve your belt to the maximum.
Step on 15 zombie heads in a single horde.
Improve binoculars to the maximum.
Arrive in Salt Desert.
Arrive at Dark Swamp.
Improve the Sniper to the fullest.
Buy all items.
Complete the game.
Improve your backpack to the fullest.
Find Thomas.
Get all the gold medals.
