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.

Make Sigma bosses appear randomly

At the title screen hold L and press these gold stars in order: S Comp Star, G Comp Star, S Comp Star, M Comp Star, SS Star, SS Star, and Black Ace Star. You should hear a confirmation if done correctly.

White Cards

Go to the Profile screen (Menu -> Brother -> Center portrait). Press the White Card box on the top-right. Enter code.

[A] [E] [I] [M] [Q]
[B] [F] [J] [N] [R]
[C] [G] [K] [O] [S]
[D] [H] [L] [P] [T]

1. SLDTCI
   Plasma Gun, Stealth Laser 2, Mummy Hand 1, Inazuma Head 1 (White Card 01)
2. ACTKGM
   Green Ink, Dummy Spider 1, Shuri Shuriken 1, Thunder Shoot 2 (White Card 02)
3. DFEJTH
   Whistle, Drill Arm 1, Drill Arm 2, Windy Attack 1 (White Card 03)
4. SIHFQK
   Bubble Hook 1, Bubble Hook 1, Flash Spear 2, Inazuma Head 2 (White Card 04)
5. EJHRPG
   Black Ink, Flash Spear 2, Bubble Hook 1, Mummy Hand 2 (White Card 05)
6. JDBPLC
   Windy Attack 1, Windy Attack 1, Noised Wizard 1, Noised Wizard 2 (White Card 06)
7. JQMAKC
   Giza Wheel 2, Ground Wave 2, Shuri Shuriken 1, Ice Spinning 1 (White Card 07)
8. FJLEDR
   Heavy Cannon, Drill Arm 2, Heat Upper 2, Heavy Dawn 1 (White Card 08)
9. HRJKBQ
   Heel Wizard 1. Bubble Hook 1, Elec Slash, Dummy Spider 1 (White Card 09)
10. IJMHQP
    Barrier, Cannon, Cannon, Cannon (White Card 10)
11. JKIPTD
    Double Eater, Beast Swing 3, Whistle, Great Axe (White Card 11)
12. IDHBGT
    Rolling Nuts 1, Rolling Nuts 2, Count Bomb 3, Machine Flame 1 (White Card 12)
13. AGHTRQ
    Wide Wave 2, Shark Cutter 2, Ice Grenade, Ice Grenade (White Card 13)
14. RSBQPH
    Edogiri Blade 3, Edogiri Blade 3, Edogiri Blade 2, Edogiri Blade 1 (White Card 14)
15. IDOSTE
    Synchro Hook 1, Freeze Knuckle, Stun Knuckle, Heat Upper 3 (White Card 15)
16. KDANJH
    Fire +30, Anger Fire 3, Ox Fire V2, Machine Flame 3 (White Card 16)
17. GHDRJL
    Aqua +30, Bubble Hook 3, Shark Cutter 3, Dia Iceburn V2 (White Card 17)
18. CSTKQN
    MteorLight, Gravity Plus, WideWave1, BeastSlap1
19. DKLEAH
    Buki3, HeatUppr3, GreatAxe, DreadJokr
20. GLRHED
    DblEater, MalWizard2, BeastSlap3, JackCorvs
21. SHDETN
    GrandWave3, SwrdFghtr1, NoiseWzrd2, DrillArm3
22. RBDLCI
    HeatUppr3, Buki3, BreakSabre, BigDrop3
23. TDAFIQ
    TyphnDance, TrnadoDnce, WindyAtk3, Scythe2
24. EGIKMP
    PollnShot3, VulcnSeed1, Shuriken3, VulcnSeed2
25. SKQALD
    FlashStrk3, ElecSlash, ElecSlash, ThndrHead2
26. JCKDBA
    BreakSabre, StlthLzr3, BuzzSaw3, AcidAce
27. STKGHM
    Shuriken 3, Wide Wave 3, Stealth Lazer 3, Smile Coin 3
28. KQBPAH
    Dance Flame 3, Heat Upper 3, Mad Fire 3, Mech Flame 3
29. BFGJIM
    Ice Spin 3, Wide Wave 3, Shark Attack 3, Bubble Hook 3
30. DTOFKL
    Jet Attack 3, Skull Arrow 3, Skull Arrow 3, Buki 3
31. TLSRPJ
    Beast Slap 3, Beast Slap 3, Scythe 3, Mal Wizard 3
32. KFHPLD
    Tornado Dance, Air Spread 3, Vulcan Seed 3, Mad Vulcan 3
33. BSCHLJ
    Panic Cloud, Panic Cloud, Flash Strike 3, Pollen Shot 3
34. JDFICS
    Mummy Hand 3, Arachnid Attack 3, Elec Slash, Earth Thunder 3
35. MFQLHJ
    White Meteor, Time Bomb 3, Big Drop 3, Mech Flame 3
36. IJDCEO
    Mini Grenade, Sword, Wide Sword, Long Sword
37. OGBFKL
    Squall 3, Scythe 3, Tornado Dance, Windy Attack 3
38. SLBHDT
    Elec Slash, Sword Fighter 3, Wood Slash, Spin Blade 3
39. DKMPHI
    Ice Grenade, Wide Wave 3, Shark Attack 3, Flame Axe
40. SJBMPL
    Great Axe, Break Sabre, Drill Arm 3, Buki 3
41. LPBKDJ
    Mad Fire 3, Time Bomb 3, Kilo Bomb 3, Kilo Bomb 3
42. THFLJI
    Elec +30, Flash Strike 3, Thunder Head 3, Spade Magnets V3
43. EMJKAD
    Wood +30, Squall 3, Vulcan Seed 3, Club Strong V3
44. BTRIFJ
    Double Eater, Wide Wave 3, Bubble Hook 3, Queen Virgo
45. KICMJT
    Destroy Upper, Stun Knuckle, Freeze Knuckle, Poison Knuckle
46. JRQTLA
    Flash Strike 2, Shark Attack 2, Heat Upper 2, Shuriken 2
47. MISBLT
    Wood Slash, Arachnid Attack 2, Shuriken 2, Stealth Lazer 2
48. HNDKLQ
    Atomic Blazer, Attack +10, Beast Slap 1, Heat Upper 1
49. GFKSLR
    Beast Slap 1, Gravity Plus, Buzz Saw Attack 1, Ice Spin 1
50. JSTKAP
    Heat Upper 2, Mad Fire 1, Time Bomb 2, Dance Flame 1
51. RTALSJ
    Ice Grenade, Wide Wave 3, Shark Attack 2, Blue Ink
52. KJRLBD
    Break Sabre, Drill Arm 3, Sword Fighter 3, Acid Ace V3