As a light list of some "unique" weapons that are already in the game: (there are quite a few more than I didn't feel were unique enough)

  • Kokiri Sword
  • Shadowblade
  • Wyrmkiller - deals double damage to dragon types
  • Mythril everything (Sword, Dagger, Spear, etc) - everything mythril must be synthesized to acquire
  • Elemental everything (Flametongue, Coralsword, Icebrand, etc) - with proper elemental weakness attributes
  • Save the Queen
  • Crystal Sword
  • Onion Blade
  • Mythgraven Blade
  • Brave Blade
  • Atma Weapon
  • Ultima Weapon -these three have unique algorithms based on the user's HP
  • Omega Weapon
  • Sun Sword
  • Gaia Blade - Golden Sun variation
  • Kikuichimonji
  • Murasame
  • Masamune -we all know about this guy
  • Mage Masher - deals double damage to Mages/Magic specific enemies
  • Gungnir
  • Blood Sword - drains HP from target and heals user by a %
  • Excalibur
  • Ragnarok
  • Master Sword
  • Alastor
  • Einhanzer
  • Gunblades - (Revolver, Blazefire Saber, Lionheart, etc)
  • Buster Sword
  • The Brotherhood
  • Tournesol


That's a chunk of 'em. Not sure if I want to add Keyblades, because I'm not too fond of them, but we'll see how much everyone wants them.
The cardboard box can easily be added, including placing the player inside of a box. I like that.
Don't limit suggestions to what you think the game can handle. If it's not absurd, I can probably add it.