Two buttons, one decision, repeated
Coin Flip strips a casino down to its skeleton. There is a bet field, a heads button, a tails button, and a cashout button. You stake some virtual coins, call a side, and the coin spins. Call it right and your stake is multiplied by roughly 1.98× — and here is the part that makes it a game rather than a novelty — you are then invited to flip again, with the whole amount riding on the next call.
So the real mechanic is not the flip. It is the streak. Each correct call roughly doubles what is on the table, and each new call risks all of it. The cashout button is always there, always showing you exactly what you would walk away with. Every decision in this heads or tails casino game reduces to a single question, asked over and over: is this the flip where I stop?