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: In Time Warp, you can exploit viruses in the otherwise very difficult Genius level of Primordial soup to gain easy wins Note The way viruses work is by infected a cell when they touch it, causing them to decay much faster and explode, which creates more viruses. Y'know, kind like how real viruses work. So either you could wage an epic battle against the incredible competent enemy cells, or you could infect one of your cells, send it into enemy territory, let it die and watch as the enemy slowly but surely die out as the virus spreads throughout their battalion in a hopeless war while you watch from a safe distance, you monster.
Surprise Difficulty: Some puzzles are a lot harder than you expect when you turn up the difficulty.
Scrappy Level: There's going to be at least one puzzle in each game you'll decide you hate. Most likely the one which targets your weakest area.