Unlock the following battle arenas by performing the corresponding tasks:

BATTLE ARENA - HOW TO UNLOCK
Aquos - Defeat all brawlers in the Aquos arena in the tournament.
Darkus - Complete the game.
Haos - Complete the game.
Pyrus - Defeat all the brawlers in the Pyrus arena in the tournament.
Subterra - Defeat all the brawlers in the Subterra arena in the tournament.
Ventice - Defeat all the brawlers in the Ventice arena in the tournament.

To unlock the following Evolved Bakugans, first complete Story mode. Then, perform the corresponding tasks:

EVOLVED BAKUGAN - HOW TO UNLOCK
Battle Axe Vladitor - Defeat Marduk without giving up any cards.
Blade Tigrerra - Defeat Runo in a Battle Royal.
Delta Dragonoid II - Defeat Dan in a Battle Royal.
Dual Hydranoid - Defeat Masquerade in a Battle Royal.
Hammer Gorem - Defeat Julie in a Battle Royal.
Preyas II - Defeat Marucho in a Battle Royal.
Storm Skyress - Defeat Shun in a Battle Royal.

Unlock the following characters by performing the corresponding tasks:

CHARACTER - HOW TO UNLOCK
Billy - Defeat him in the Subterra arena in the tournament.
Dan Cusso - Defeat him in the Pyrus arena in the tournament.
Julie - Defeat her in the Subterra arena in the tournament.
Marduk - Complete the game.
Marucho Marukuro - Defeat him in the Aquos arena in the tournament.
Masquerade - Defeat him after you have won with Shun in the Ventice arena in the tournament.
Runo Misaki - Defeat her in the Aquos arena in the tournament.
Shun Kazami - Defeat him in the Ventice arena in the tournament.

To unlock the following Protaganist Bakugans, first complete Story mode. Then, perform the corresponding tasks:

PROTAGANIST BAKUGAN - HOW TO UNLOCK
Cycloid - Join Julie in a Tag Team battle.
Dragonoid - Defeat Dan in a One On One battle.
Fortress - Join Dan in a Tag Team battle.
Gorem - Defeat Julie in a One On One battle.
Harpus - Join Shun in a Tag Team battle.
Preyas - Defeat Marucho in a One On One battle.
Sirenoid - Join Marucho in a Tag Team battle.
Skyress - Defeat Shun in a One On One battle.
Tentacler - Join Runo in a Tag Team battle.
Tigrerra - Defeat Runo in One On One battle.

Activate the following cheats by entering the corresponding code as your name when starting a new game:

CHEAT FUNCTION - CHEAT CODE
1,000 BP - "180978772269"
5,000 BP - "332044292925"
10,000 BP - "423482942968"
Bronze Warius - "449824934071"