Technical 1

Positive — Collecting a Coin 

Player presses E three times on a coin. Each press shakes it and plays sound. On the third press, gold particles burst, a "+100" text floats up, and the player gains 100 points. 

Negative — Hitting a Wall 

Player collides with a wall. The camera shakes briefly, red particles burst out, the screen edges flash red, a "-10" floats up, and the player loses 10 points.