A masked man approach you, then he throws a card with the following written:

"You are invited to Desire Royale. May you become the last Rider standing."

Then, a yellow loot box appear on the ground. Inside is a Transformation belt (any transformation item from any Kamen rider series), and the item it works with (any trinkets or gimmicks from any Kamen rider series ).

"Now,let it begin. The grandest battle royale!"

Ready, fight!