[Styn]

Some of these machines (at least in europe) are actually required by law to average out to a certain return percentage over a set number of bets. This means they need to compensate for naturally accuring bad streaks. (And good...)

[joezydeco]

You wouldn't see that in most US jurisdictions that have proper gaming laws and review (NV and NJ being the big ones).

The software and underlying math is audited by a third party and verified to produce the desired average result over millions of plays, but cannot adjust the odds dynamically to make sure that percentage is hit.

[tinus_hn]

A proper die doesn’t need to compensate to make sure every side is hit the same amount of times.