So, just confirmed that on the PS4 version you are not limited to registering up to 10b only. This was an issue previously with the PS3 version I had understood. The local high scores won't reflect it, but the leaderboard will!
Here's something else I can confirm after a marathon game that started last night and ended about an hour ago with a new #1 score (yes, I slept, watched football during it...lawl.. made DAMN sure my PS4s power saving feature was turned off):
We've been long convinced that the fully rom-emulated versions of the table stopped awarding billion shots on the big wheel after you complete 8 of them. So, you could get 8 plus the backdoor billion for 9, then have to earn points other ways the rest of the way. I'm pretty sure that mobile versions didn't have this limitation so there seemed to be an unfair advantage there. The news is, you actually CAN get more billion shots. It is just extremely rare. I'd estimate the odds at about 1 in 100. I got 6 or 7 more of them in my game, but I had to absolutely hammer away forever on big wheel shots, and I'm betting I easily hit around 600-700 of those over the course of the game after I had reached the 8 billion "limit". So yeah, maybe 1% chance. Strangely though, at one point it gave me two in a row, way later in the game! About 50% of the time, you'll get 5 million. The other 50% of the time you get any one of the others. Most of the time you're just hoping to get 50 million a lot. Hitting a few of those still makes the wheel the most lucrative thing in the game and it gives those out often enough. You can ride the whole process on rails if you just master the shuttle and heart ramps, and it's easy to keep 4 EBs stacked all day long (That's how you run up the skill shot multiplier because you never lose it on endless EBs)
Oh yeah, I was going to mention the 255 skill shot multiplier limit, but vikingeric already did. Funny thing happened... after 255, it actually goes to 0x for one shot. I happened to hit the 200k, and was awarded "200,000 x0" with the usual "YAHH HOO!" Good times.
Oh and yeah I also noticed you can make the ball hop to the plunger from the figure 8 track when it was meant for the right inlane... I've done it by accident during multiball and sometimes it just hops over on its own. Never thought to exploit it... heh. But, if you have the multiball cycle going, you'll end up with a lot of plunger shots anyway.
It's cool and funny that you'd do that. I could see doing something like that for fun.
However the top score is SIXTY-BILLION. NON MOBILE.
So basically if we work out the math. It took you around 8 hours to score 20 billion points, since 8-10 bil was given by the wheel. That means for 60, we're looking at a time sink of around 24 hours. TWENTY FOUR freaking hours. There's no way. It's either a hack or we're dealing with someone who truly has no life whatsoever.