The main question I had was what was the form of combat. There was no mention of shooting. So what was it? Ramming? Lasers? Magnetism? Bullets? Turns out it is bullets. Boring.

But they did say "a four-player game that was said to resemble Sinistar" but it would have been more accurate to have said "it's literally a 4-player version of Sinistar" and I would have had zero remaining questions.