From: GTMplusCATS | #030
IIRC, Game and Watch 9's are more likely if you don't use it for a while
Huh, I never heard this before so I looked it up and found some interesting stuff about his side B. I thought it was random before but now I know something!
The first hammer in a match cannot be a 1 or 2.
The second hammer in a match cannot be a 2.
Any number the hammer displays cannot be obtained again until after 2 more hammers.
A death (fall or SD) will reset the rules currently applied to #3.
So long as the forward B animation starts, it will count as the next number. In other words: If you input forward B on frame 1 and are hit on frame 2, it'll still count as the number coming out.
Probabilities known of so far:
1/7 chance to see a nine on first throw.
1/7 chance to see it on the second throw if it was not on the first.
1/7 chance to see it on the third throw if it was not on the first or second.
1/7 chance to see it on the fourth throw if it was not on the second or third.
0 chance to see it on any throw if it's been seen in the past two throws.