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.
Nightmare Fuel: A lot of players have described absolute panic and terror when they're stuck and M A S H E E N or El King is speeding straight towards them, or when they think they're safe and El King smashes right into them. And when you're on the Fast and the Furious+The Radical, feel terror of the massive truck is participating. You'll be speeding round the track, thinking that you're safe, when you see its headlights. Many players barely escape! Basically, the two wasters are the personification of Nightmare Fuel here. The levels they're on are akin to torture chambers, with lots of traps, spikes and wall-sided ramps.