You'll be required to sign up to play the game ahead of time, as there will be no way to do so on-site. The email will contain details on how you reserve an electronic ticket to play.
Back in 2011, Bandai Namco Entertainment (then known as Namco Bandai) released a variety minigame collection Go Vacation on the Wii to mixed reception.
Registered E3 pass holders* will have a chance to secure tickets to try out the upcoming Super Smash Bros. game for Nintendo Switch.
Nintendo is likely pushing out this announcement ahead of its big E3 2018 Nintendo Direct, which is set to focus on Super Smash Bros Switch along with (hopefully) containing a few surprises.
Additionally, Nintendo said it wants fans to bring their Switch systems to the show with them.
It looks like this year is going to be a very intriguing one for fans, especially with Nintendo reserving spots for players and rewarding those seen utilizing its products, so if you're planning on going be sure to reserve your space and rep Nintendo if you want to win some special goodies. What games do you hope make it to the show? As of right now we know surprisingly little, other than the fact Inklings will join the roster and Link will adopt his Breath of the Wild attire, but we should learn a lot more at the event.