When multiplier is in effect and the player's medal level is already at 10,000 points, revealing medal causes 100,000-point medal to appear instead. When multiplier timer reaches 0, the score multiplier effect simply disappears.
When multiplier is active and the player's medal level reaches 10,000 points, a 100,000-point medal appears instead. When the multiplier timer expires, the score multiplier effect ceases to exist.