To get more weapons, just play a Free Expedition on the ground. After killig a bunch of enemies, it will say a treasure box appeared.
In order to gain new weapons for this game go through the free expedition aerial missions and complete them without using magic (TRIANGLE).
Submitted by Papa Smurf, Victor Travers
When playing as Caim, find a wall or an obstruction that you can run against. Running against the wall will charge your run up. Then, you can execute a run attack or get where you need to more quickly.
Want to level up weapons quickly? Just fully level up the "Windsinger" and then go to Chapter 1 Verse 2 and charge the spell up all 4 bars. Activate the spell and then take out the weapon you want to level up. Run into big groups while the spell adds the kill to your weapon you are leveling up.
Beat any verse to unlock it for Expedition mode.
Complete the Free Mission at Shinjuku, after completing Chapter Thirteen. Once the Free Mission is completed, a Jet will be unlocked that can be used during Sky Missions.
To select the Jet, scroll all the way down on the Dragon Select menu (past the Chaos Dragon) and you'll find a "???" option. Select it, and in the mission you'll be flying the Jet.