Aya's protective gear is always at maximum damage.

Unlocked by accomplishing at least four chapter 1 feats on Hard mode.

However, tanks and helicopters can only fire one or two missiles (respectively) before needing to reload, as normal. Aya's supply of hand grenades is also limitless, and the machine guns on tanks, helicopters and turrets can fire continuously without overheating. This subtle difference means that Aya never needs to reload, which is particularly useful for weapons with small magazines such as launchers and sniper rifles.

All weapons have infinite ammunition, or more accurately, ammunition is not consumed while firing.

Unlocked by completing the game at least ten times on any difficulty.

NPCs can join Crossfire even if they are not standing behind barricades.

Health regeneration while idle is considerably accelerated.

Unlocked by purchasing it for 10,000 BP after completing the game at least once.

However, any feats completed while cheat codes are active will be saved, and BP is still gained from feats during the chapter playthrough.

If a chapter is played with any cheat codes active, the rank received for that playthrough of the chapter will not be saved. Three of the cheat codes are 'assist codes', which have beneficial effects, while the remainder are 'challenge codes' that have negative effects, to make the game more challenging. Cheat codes are a feature in The 3rd Birthday, most of which are unlocked by completing Feats.

Parasite in city cheats code