Press Up, Down, Up, Down, Left, Right, Left, Right, Up, Right, Down, Left, Up, Select to enter new names for Garet, Ivan, and Mia.
The Masamune:
Use a password or the transfer method to send clear data. Once you have Isaac in your party, sail to Yallam and use force on the tree stump next to Sunshine's house. Jump across and use cyclone on the grass patch. Then, follow the cave path to reach the Masamune. It's unleash is Rising Dragon.
Character and weapons:
Felix:
Mythriyl helm
Valkyrie mail
Sol blade
Aegis shield
Hyperboots
Jenna:
Lucky cap
Mysterious robe
Tisiphone edge
Big bang gloves
Hyper boots
Pier:
Warrior helm
Ericque tunes
Excalibur
Aegis shield
Golden boots
Sheba:
Brilliant cirlet
Iris robe
Lacesis rule
Titan gloves
Hyper boots or quick boots