-Kingdom Hearts Birth By Sleep is the first Kingdom Hearts game that does not feature the Kingdom Key as a usable Keyblade.
-When Aqua saves Terra by giving him her armor and her keyblade, she handed him the Rainfell keyblade. When Ansem, Braig and Dilan went to pick up Terra-Xehanort, the keyblade that is lying next to Aqua's Armor is the Stormfall Keyblade