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 Retardant: Fulgore is a big, hulking evil robot with glowy red eyes, long claws, and a multitude of deadly weapons at his disposal. He also makes elephant noises when you hit him.
Polished Port: Thanks to Nintendo having the programming team for the arcade version handle the Super Nintendo and Game Boy ports, instead of outsourcing it to a third-party developer. The result is that the SNES version was well-received and the GB version was surprisingly faithful, and more importantly, playable.
Rated M for Money - Fairly blatant at that. It was actually rated T, but the intent was still there.