I noticed a lot of weapons in the game are ports of GetAmped 2 accessories. Here's what I found so far in the Alpha and Beta. If you play both games and found more accessories ported over in this game, feel free to post them here.
Katana:
Sealing Sword (Only one though instead of four)
Otenda Mitsuyo
Munechika
Nodachi:
Crimson Edge
Sacred Edge
Spear:
Dragonic Naginata (Miroku only, got remodeled into a different spear with the same colors)
Cudgel of Blue Sky
Chinese Spear
Prussian Kaiser (Acc's a giant axe, they squeezed it to make it more of a spear. http://wikiwiki.jp/oni_giri/?plugin=att ... 1%E4_0.png)
Twin Sword:
Dual Resonance
Bow:
Shekhinah(?)
Wand:
Default Enchanter weapon
Staff:
Stardust Wand
Axe:
Litchen Warder
If this game is going to get more updates, here's what I would predict.
Katana:
Onimaru
Flying Treasure Sword
Nodachi:
Dojigiri
Dainsleif (There is a Dainsleif spear in Onigiri, but the sword isn't there)
Woden Salve
7 Elemental Greatsword
Alastor's Rage
Molten Boulder
Axe:
Grim Grudge
Excel Driller
Rude Hatchet
Spear:
Ventura Valor
Twin Sword:
Twin Blade -Moon-
Luminous Crusade
Spite of Devils
Vicious Rhizome
Bow:
Lightning Arc
Blazing Arc
Artemis Arrow
Wand:
Miracle Transforming Stick
Icicle Wand
Ignis Wand
Lunatic Tears
Staff:
Perkunas Wand
Staff of the Falling Blossoms
Seraphic Cross