King of Fighters: Maximum Impact Cheats

Unlock Duke:
After finishing story mode as Soiree and Alba.

Alternate costumes:
After finishing a challenge in challenge mode.

Fighter profiles:
After finishing the game to unlock the corresponding character in the profile screen. REMEMBER: You can now also select their rigging model in their profile and use it while playing the game.
User Cheat by HoldingDownTheFort

Cemetery stage:
After finishing all challenge mode missions.

Esaka stage:
After finishing 25 challenge mode missions.
User Cheat by FightingBoi

Infernal Gate stage:
After finishing 25 challenge mode missions.

Show Time stage:
After finishing 10 challenge mode missions.

Mai: Defeating Duke:
Fighting Duke as Mai can be difficult. However, if you keep using her combos, such as Super Deadly Ninja Bees and Windwill Waster and do not allow Duke to power up any of his most devastating attacks, you will defeat him. REMEMBER: This may require a lot of practice; use the practice mode until you are skilled with Mai's combos. Defeating Duke in story mode will unlock Mai's profile and rigging model.
User Cheat by MrBurns

Extra hits:
To get 30 hits in one of the challenge mode missions, use Ryo's Whipslash Bash with a Light Punch then use his level 2 special.

King of Fighters Maximum Impact Review - SiliconEra

King of Fighters Maximum Impact Review - Etoychest

King of Fighters Maximum Impact Official Website

King of Fighters Maximum Impact GameSpot Preview

King of Fighters Maximum Impact Games Domain Preview

This fighting game , developed by SNK Playmore, is scheduled to be released on October 12, 2004.