Here's how I got the high score:
First off I abused the slots. Everytime the ball was new/out I made sure to rotate the slot lights to get it activated ASAP. This provided me with an easier way to get pichu, coins to buy bonus rounds etc.
Most importantly I always focused on maintaining my ball as a Master Ball. That way I got the x4 bonus on everything.
While catching monsters I went for as many Evos as possible. This let me get to the bonus rounds faster. The bonus rounds + x4 bonus = huge points.
To really help out I made sure to not loss the ball often. Instead of earning new ones by buying/slots/cataching Rayquaza I tried to keep the ball in play. That way I had more multipliers for each End of Ball Bonus. While doing that I would hit the EoBB multiplier as many times as possible. I had several EoBBs with the multilpier at 99. Once I received a bonus of 5 billion.
That, combined with far too much time on my hands let me crash the game. I actually called nintendo earlier to ask if they had put an error trapper to catch this. They said that everything had been taken care of, but they were wrong.
_______________________________
Infinite Loop trick on Ruby field.
First off you need to get the bumpers to be set as the three rotating clockwise.
Next shoot the ball around the left loop of the field, let it come around and tap it agian in that direction, but lighter.
When it gets to the top of the loop, at the position above the left of the three paths above the bumpers. Shake the table upwards. This will make the ball lose lots of momentum.
If the ball doesn't fall in, you'll have to repeat the light tap around + table shake.
The key is to time it so that when the ball falls through the hole it hits the bumper on its way up. This will give it enough momentum to go into the path area again (covering the little light).
It will proceed to follow this pattern if you got the shot off right:
Fall down.
Bumped by a bumper, but only goes partway up.
Falls down.
Bumped by the second bumper, this time it has enough momentum to get into that little path and cover the light.
Falls down
Bumped by the third bumper as it originally was.
It goes up to the same area covering that little light.
This cycle repeats endlessly. But only if you get the intial timing and speed right. If you have a backspin on the ball when you shoot it up it tends to not stay in the loop. Any further shaking of the table will make it exit this loop.
If you want you can repeatedly hit the A button to rotate the lights so that you get you ball to maintain the current multiplier. If not you can just plug in your SP, go to school, hang out with your friends, eat dinner, go to bed..... and come back in a week to see it still there.
I didn't actually leave it on for that long, I essentially observed the same pattern recur for 10 minutes straight, then I left it on and watched it go for an hour. I then got bored, bumped the table to get it out.
But to make sure of this, I repeated the experiment a few times to get it into the loop. It work.
It's probably one of the harder shots in the game to pull off. More a nifty little trick than anything.