I've spent the last hour or so battling it out in the Battle Dome in anticipation of challenging Tucker, but he never showed up. I've racked up 6 straight wins now, and I read he was supposed to show up after 5. What gives? Will the Brains not challenge you on the Double Battle modes or are their appearances simply random after you've beaten the needed amount? Unless they just don't like Level 50, which is what I've battling on... Which is it? ... Tucker is a guy, right?