At the start of the 'Vegas In Ruins' chapter, before you enter the building, there is a van with weapons.
In 'The Hive' chapter, after you tickle the first door, turn to your left, and walk forward. This is a reference towhen Leonidas says 'Tonight, we dine in Hell! He says things like 'Do you want me to trash your mics? Number plate design bike indiaĭO YOU? This is a reference to when Christian Bale freaked out on the set of Terminator: Salvation. Note: This room is also shared with the Duke Nukem Fanboy. You can pick up the rat and put it in the microwave. In Chapter 2: 'Damn! It's Late Directly under the microwave is a cupboard that can be opened to find a rat. You will also get 20 points each time an enemy is damaged.
In this mode, all points earned are doubled with the exception of challenges. Reach Level 40 in Multiplayer mode to unlock Overdrive mode. Successfully complete the indicated multiplayer weapon challenge to unlock the corresponding accessory in the changing room. Note: Enabling the 'Infinite Ammo', 'Instagib', or 'Invincibility' cheat options will prevent Ego points and achievements from being earned.
Successfully complete the game on the indicated difficulty to unlock the corresponding cheats and bonuses at the 'Extras' menu.