The subject game can be rigged, but it probably wasn't, . . . because it is almost impossible to get a ball to stay in the basket anyway.
Ref: Carnival Games
However, DonDiego can advise the avaricious player how to win prizes at those roll-a-ball down a slanted alley into holes to move a camel, or horse, or whatever-it-is down a racetrack.
One is not, in fact, playing against the house; one is playing against the other players. The value of the prize is proportional to the number of players.
So, the trick is to wait until players one can beat are playing. By playing this game in the basement of the Excalibur Hotel and Casino DonDiego once won a $50-or-$60 stuffed Gorilla-With-A-Baby for $1. His competitors comprised several very small children whose parents let them play without help and even two infants whose parents had to hold them upright seated at the end of the alley.
WARNING: DO NOT PLAY THIS GAME AGAINST ANY MALE PERSON BETWEEN THE AGE OF EIGHT AND TWENTY-FOUR, ESPECIALLY IF THEY ARE YOUTHS ACCOMPANIED BY ADORING GIRLFRIENDS. YOU WILL LOSE.