Plinko drops a ball through rows of pegs into a multiplier slot. BGaming's version lets the player change the row count and choose between low, normal and high risk settings, which change the displayed payout distribution. The important decision occurs before the ball drops. There is no rising multiplier to stop mid-round, so an Aviator-style cash-out explanation would not fit this game. Edge pockets and central pockets have different values.
To compare related quick play formats, read the rules of Plinko XY.
The library also explains how crash and instant-game rounds differ to help put these mechanics in context.
Source: published game information.