These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Game Breaker / Golden Snitch: The "5x Playfield" bonus. Any time White Water is used at a competition, watch all of the top-level players set themselves up so the machine will give them lots of points, then make repeated beelines for the whirlpool until that bonus shows up.