Bingo

Bingo is a gimmick that appears in the Sonic the Hedgehog series.

Description
Bingo is a game that uses 9 numbers (from 1 to 9). When the player manages to obtain three of these numbers in a row by touching them, they will get a “bingo”, and will often be given a reward. After this, the board that showcases the bingo will restart all over again.

Sonic Heroes
In Sonic Heroes, Bingo is playable in BINGO Highway , where they are spread across the pinball table-like areas the characters travel through, appearing as multicolored, massive numbers withiin rings. One collected, and depending on how the numbers align, the player receives varying numbers of rings.

Sonic Rivals 2
In Sonic Rivals 2, Bingo is used in Neon Palace Zone , and much like its previous appearance, when getting a bingo, the player gains rings. This time around, the Bingo numbers are activated by touching blocks that have the corresponding number on them.

Bingo is also used when fighting this Zone’s boss, the Egg Dealer. Getting a bingo will cause the Egg Dealer to descend after being hit by a beam of lightning, allowing the player to attack it.