Shadow of the Colossus - 180 gallop turn

Brown Agro:
Defeat all sixteen Colossi and get all items in Normal Time Attack mode. Then at the title screen, hold Square.

Control intermission sequences:
During all intermission sequences, the view can be moved and zoomed in. You can also allow the game to idle during the introduction sequence to see Agro exploring the world without Wander. This sequence can also be controlled.

Hard mode:
Successfully complete the game to unlock the Hard difficulty setting.

Ico reference:
Have a saved game file from Ico on your memory card to change the diamond-shaped mark on Agro's head to the "I" from the Ico logo.

Play as Dormin:
Defeal all sixteen Colossi to unlock Dormin, the demon Colossus.

Quick gallop stop:
Press Left Analog-stick Down X.

Reminisce mode:
Go to the corpse of the Colossi and press Circle to pray. In this mode, the graphics will change to an old film appearance.

Ride a hawk, bird, lizard, or eel:
Sneak up behind them and press R1.

Secret garden:
Successfully complete the game four times and get a large amount of stamina. Then, travel to the ends of the world and locate the patch of ivy on the northeast side of the shrine. Climb up the ivy and follow trail all the way up and around the ledge to the right. Jump across at the other end of the ledge to reach the next set of ivy. Continue on until you get to another ledge above that you must climb around. Once at the other side of this ledge, climb to the right then shimmy across another ledge that leads behind a column. Jump to the ivy-covered column, then continue climbing. The ivy will lead to a walkway. Climb the stairs and walkway to the left of the garden. Note: Eating fruit from the trees causes damage.

Standing gallop:
Press R1 X.

Time Attack mode:
Successfully complete the game to unlock Time Attack mode.

Time Attack mode bonuses:
You will be give a bonus item for every two Colossi defeated in Time Attack mode. On the Normal difficulty setting, the following bonus items will be unlocked, in order:

Whistling Arrow: Distracts a Colossus:
Cloak of Force: Sword damages a Colossus more
Mask of Strength: Inflict greater wounds to a Colossus
Lizard Detection Stone: Detects white tailed lizards
Fruit Tree Map: Reveals the Fruit Trees on map
Mask of Power: Inflict greater wounds to a Colossus
Cloak of Deception: Invisible to a Colossus
Flash Arrow: Explodes when hits Colossus
Brown Horse: Hold Square to start game at the main menu to get a brown horse

While playing Time Attack mode on the Hard difficulty setting, the following bonus items will be unlocked, in order:

Harpoon Of Thunder
Sword Of The Sun
Fruit Tree Map: Reveals the Fruit Trees on map
Shaman's Cloak
Lizard Detection Stone: Detects white tailed lizards
Shaman's Mask
Cloth Of Desperation
Queen's Sword From Ico

White Agro:
Defeat all sixteen Colossi and get all items in Hard Time Attack mode. Then at the title screen, hold Circle.