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.
Accidental Innuendo: By Word of God, Sphinxster's name was meant to be a pun on "youngster", but it was only until after the release of Dr. Lunatic that Mike Hommel realised that it sounded dangerously close to "spinster".
Evil Is Cool: Think about it. The protagonist in Dr. Lunatic is a bald man holding a hammer. He goes up against an Elvis-impersonating Mad Scientist who plays poker with a scorpion, two bears, a Sphinx and a Thing. All of them command armies of Cute Bruisers. Supreme one-ups this by giving the scorpion a gigantic bulldozer as an ally. In what way is evil not cool?
Game Breaker: Missiles, as well as the Mines Rage attack. Even bosses will feel the pinch under a constant barrage of either.
Goddamned Bats: Scary Bats, Scarier Bats and Die Uberbat in Dr. Lunatic and Supreme. Even Die Uberbat, a miniboss, isn't really a big challenge if you have just a little bit of firepower, but he can summon Scary Bats to tackle you.
Growing the Beard: From SPISPOPD to Dr. Lunatic. The latter was one of the first games published under the Hamumu Software name, and it defined the company's culture for a full decade after its initial release.