Extra Costumes
Complete the indicated task to unlock the corresponding costume.
Barbarian: Collect all Stamina Campaign signs.
Earthquake: Find the secret item in Port Alex.
Fire: Find the secret item in Port Alex.
Frog: Complete the Lahar rescue on Stage 15 in less than 25 seconds.
Heavy Rain: Complete the game.
Hurricane T-Shirt: In Stage 18 "Mud And Mercenaries", examine the door to the female toilets multiple times.
Mech Ray: Complete Real Disaster mode.
Rescuer uniform: Complete all 45 rescues.
Samurai: Collect all 100 titles.
Tsunami: Find the secret item on the ferry.
Volcano shirt: Save Iris from the molten lava, then jump across the small gap to find the shirt in a barrel.
Weapons
Complete the indicated task to unlock the corresponding weapon. Most weapons are unlocked by buying them or earning them in Shooting Galleries - However, there's a few extra ones for completing certain tasks.
Deep Impact: Shoot ten grenades before killing Gregory to unlock his assault rifle.
Immolator: Shoot ten knives before defeating Major Evans during the first battle with him to unlock his handgun.
Twister: Complete the game to unlock Colonel Haynes' shotgun.
Volcano: Shoot down ten missiles before destroying the helicopter on Mt. Rosalia to unlock the Shadow Mercenary's rocket launcher.
Completion bonuses...