When you play as Agrippa and leave the Syracuse prison there are two wooden crates in a hole on the rock side of the pathway on the 2nd floor, these crates contain a one handed and two-handed weapon.

Collect Salvo points throughout the game and when you have enough special armour which you will start every fight with from then on will become unlocked.

Unlock Fortus Rex Armour:
Collect a total of 300,000 Salvos

Unlock Talon Aegis Armour:
Collect a total of 800,000 Salvos

Unlock Chariots of Ire:
Get Gold in ALL 'Hard' Gladitorial events

Unlock Invisible Opponents:
Get Bronze in ALL Extreme gladitorial events and they will be invisible when 'ON' is selected.

Unlock Vitality Opponent Gauge:
Get Bronze in ALL Extreme gladitorial events and it becomes visible when 'ON' is selected.

Unlock Art Gallery:
Get a Bronze rank on ALL 'Normal' events

Unlock Labyrinth Arena:
Get a Silver rank on ALL 'Normal' events

Unlock Survival Mode:
Get a Silver rank on ALL 'Normal' events

Unlock Great Escape Mini Game:
Get a Gold rank on ALL 'Normal' events

Unlock Gorilla Costume for Agrippa:
Complete ALL Gladiator challenges

Unlock Ugly Duck Fling Mini Game:
Get a Bronze rank on ALL 'Hard' events

Unable to 'Guard'/Block when 'ON' selected:
Get Silver in ALL Gladitorial events

Unbreakable Weapons when 'ON' selected:
Get Silver in ALL Gladitorial events


Unlock special Costumes/Haircuts for Octavianus
Buy the corresponding amount of items from the vendors in the city gates area and special items delivered to your house as Octavianus. Access all of these by selecting them from your Dresser.

Unlock Mr. Onion Head:
Buy at least 5 items

Unlock Pansa's Robe:
Buy at least 10 items

Unlock Splitting Head Ache:
Buy at least 20 items

Unlock Chameleon Suit:
Buy ALL items from ALL vendors