After years of waiting, Square Enix has finally revealed new footage of Kingdom Hearts IV at the June 9 Nintendo Direct . Square Enix revealed a roughly 90-second trailer featuring series protagonist Sora, returning antagonist Luxord, and several other mysterious characters that seem to be associated with previous entries in the franchise. Strelitzia, for instance, comes from the mobile title Kingdom Hearts Union χ. Aside from the characters, the brief trailer teases new gameplay for the first time in four years. It shows Sora face off against a kaiju-sized Heartless monster in the streets and across office towers of the new setting for the game, Quadratum. The massive Heartless proves to be a challenging figure for Sora, and the gameplay shown for the fight against him seems more exhilarating than anything that the Kingdom Hearts franchise has done so far.…