Coin Drop is a Plinko board. You start with 20 coins and release them one at a time from the top, where they fall through ten staggered rows of pegs into one of nine prize slots. Each peg deflects the coin with a small random kick, so no two drops from the same spot follow the same path.
Each slot carries a multiplier printed on it. From left to right they are 0.5, 1, 2, 5, 10, 5, 2, 1 and 0.5, applied to a base of 10 points. The centre slot therefore pays 100, the slots beside it 50, then 20, then 10, and the outermost 5. Your coin count drops by one per release, and clicking does nothing once it reaches zero.
Yes — on a touch screen the game shows on-screen buttons, and games played with a mouse work by tapping.
Not reliably. Every peg hit adds a random sideways push, so aiming above the centre improves the odds but guarantees nothing.
There is no timer and no game-over screen. The round simply finishes when your 20 coins are used up.