Enable RockMan crossover quest - Enter this code while at the eastern solar bank to start the RockMan (MegaMan) crossover quest.

Code Effect - Up Up Down Down Left Right Left Right L R L R Begin RockMan (MegaMan) crossover quest

To unlock Django and Sabata Gears - You might have to go through back and forth a lot to get them but it's worth it.

Most of them are from the boss rush.

Blood-Sucker(Sabata only) Using Sabata, beat Boss Rush in Gold class with the option "All" and get S-rank.

Day-Walker(Django only) Using Django, beat Boss Rush in Platinum class with the option "All" and get S-rank.

Eclipse-eye(Sabata only) Complete Epilogue tower from floors 81-90.
Eclipse-googles(Django only) Complete the Epilogue tower at the 91-100 floors.

Night-Stalker(Sabata only) Using Sabata, beat Boss Rush in Platinum class with the option "All" and get S-rank.

Soul-Saver(Django only) Using Django, beat Boss Rush in Gold class with the option "All" and get S-rank.

Titles - Complete the specified task to obtain the title.

Unlockables

Adventurer Complete the Epilogue Tower

Collecter Collect all tracks for the Jukebox

Dark Knight Reach level 99 with Sabata

Gladiator S-Rank all boss battles
Grand Master Obtain all other titles
Guardian Max out the protection capabilities of all sheilds
Gun Master Raise the level of all of Django's guns to 16

Hunt Master Defeat one of every type of monster

Shooting Master S-Rank every Laplace stage
Sol Gunner Reach level 99 with Django
SP Agent Clear all quests assigned by the guild
Sword Master Raise the level of all of Sabata's weapons to 16

Treasure Master Obtain all accessories

Wanderer Clear the game on every difficulty