So, it seems the Kirby Battle Royale Demo for Europe is out. I went to eShop, and unfortunately it's not here for all regions. America will still have to wait even for the demo, but it's nice to know that one will exist ahead of time. This demo is out a little more than 2 weeks before the full release of it in Europe, so we can expect something similar for the American demo, if not with a greater time gap (since one English isn't very hard to translate to another English). From what I've been informed, you use B and Y to attack, R can be used to grab and throw stuff. Your available abilities are Sword and Cutter, with Beetle being unlockable. The modes available are the Battle Arena, Apple Scramble, and Crazy Theater. And the game does not have a colon.
in Kirby Wiki