Complete all eight tournaments, then replay any of the tournaments as the indicated character to unlock their concept art.
Adjo concept art: Replay a tournament as Adjo.
Dragov concept art: Replay a tournament as Dragov.
Finn concept art: Replay a tournament as Finn.
Killen concept art: Replay a tournament as Killen.
Kuro concept art: Replay a tournament as Kuro.
Nemo concept art: Replay a tournament as Nemo.
Renwick concept art: Replay a tournament as Renwick.
Seager concept art: Replay a tournament as Seager.
Character ending sequences
Complete all eight tournaments, then replay any of the tournaments as the indicated character to unlock their concept art.
Adjo's ending: Replay a tournament as Adjo.
Dragov's ending: Replay a tournament as Dragov.
Finn's ending: Replay a tournament as Finn.
Killen's ending: Replay a tournament as Killen.
Kuro's ending: Replay a tournament as Kuro.
Nemo's ending: Replay a tournament as Nemo.
Renwick's ending: Replay a tournament as Renwick.
Seager's ending: Replay a tournament as Seager.
Characters
Complete the indicated task to unlock the corresponding character.
Character
How to unlock
Killin
Complete Ocean Liner in Tournament mode.
Nemo
Complete Bojiste in Tournament mode.
Level concept art
Shoot all Secret Skullshots in all stages of a level to unlock the concept art for that level.
Bunker concept art: Shoot all Secret Skullshots in all the Bunker stages.
Manor House concept art: Shoot all Secret Skullshots in all the Manor House stages.
Ocean Liner concept art: Shoot all Secret Skullshots in all the Ocean Liner stages.
Prison Cells concept art: Shoot all Secret Skullshots in all the Prison Cells stages.
Steel Mill concept art: Shoot all Secret Skullshots in all the Steel Mill stages.
Venice concept art: Shoot all Secret Skullshots in all the Venice stages.
Warehouse concept art: Shoot all Secret Skullshots in all the Warehouse stages.
Warzone concept art: Shoot all Secret Skullshots in all the Warzone stages.
Levels
Complete the indicated tournament to unlock the corresponding level in Single Event and Tournament modes.
Bunker: Complete the Manor House tournament.
Manor House: Complete the Warehouse tournament.
Ocean Liner: Complete the Prison Cells tournament.
Prison Cells: Complete the Venice tournament.
Venice: Complete the Steel Mill tournament.
Warehouse: Complete the Ocean Liner tournament.
Warzone: Complete the Bunker tournament.