Mega Man Star Force 3: Black Ace Cheats

Fight RogueZZ
At the title screen, hold [L] and press G Comp Star, M Comp Star, M Comp Star, SS Star, G Comp Star, S Comp Star, and Black Ace Star. He'll appear in the Meteor G Ctrl CC, which is located in the Orbital Base.

Different Title Screen
On the title screen, once you have all 5 gold stars, press them in this order: S Comp, G Comp, S Comp, M Comp, SS, SS, Black Ace, then the title screen will change

Cipher Codes
Go to the Big Wave store in Echo Ridge. Once inside talk to the orange Wizard holding a surfboard at the right of the store. He will ask you for a Cipher Code. Enter them correctly and you receive a reward.

Eta67300: "AcidAceV3" Battle Card
Upsilon79755: "AcornBomb3" Battle Card
Sigma08312: "AirShoes/260" Ability
Delta86531: "AirSpread3" Battle Card
Phi40588: "AntiDmg/250" Ability
Psi07280: "BeastSlap3" Battle Card
Lamda09373: "BigDrop3" Battle Card
Omega68805: "BN Blaster EX (1/5/2)" Weapon
Omicron74574: "BubblHook3" Battle Card
Mu13420: "Bushido3" Battle Card
Gamma31412: "ClubStrngV3" Battle Card
Theta78108: "CygnsWingV3" Battle Card
Psi09659: "Danger Ring (2/2/3)" Weapon
Omega42348: "DblEater" Battle Card
Beta20976: "DiamndIceV3" Battle Card
Zeta11702: "DreadJokrV3" Battle Card