Plinko is a single-player carnival chip-drop game. Each round gives you 10 chips to drop through a brass peg board. Click or tap the top bar to set your aim reticle, then release to drop — the chip bounces left and right through 10 rows of pegs (12 on Pro) before landing in one of 9 scoring slots at the bottom. The centre slot is worth 1000 points; values taper to 100 at the edges. Avoid the edge slots — landing in one resets your multiplier to 1x — and aim for the columns that hold red star bonus pegs, which push your multiplier up to 5x on Easy and Normal.
The board follows the classic Galton-board shape made famous by television game shows and midway carnivals: each row holds one more peg than the row above it, so every bounce is a fresh left-or-right coin flip and no two drops trace quite the same path. Over ten chips the maths of the binomial distribution pulls most landings toward the middle slots, which is exactly why the multiplier system rewards streaks of non-edge landings — the skill lies in reading how the difficulty setting changes the chip size, the bounce randomness, and whether star pegs are on the board at all, then adjusting your aim a few pixels at a time rather than re-aiming wildly after every drop.