Adaptation Expansion: The Genesis version, titled Wardner no Mori SPECIAL in Japan, expands Stage 4 and divides it in half, and lengthens the final stage. It also expands the story by including more concise dialogs between the characters.
Adult Fear: The game averts Too Smart for Strangers — The hero and the princess brainlessly follow a complete stranger who is offering to take them to a Fantasia (whatever that is), and the princess is then kidnapped and the hero is left to try to save the princess on his own.
Body Horror: The spider monsters have a gruesome animation where extra limbs burst out of them, leaving their dress covered in blood.
Boss Rush: Added to the Genesis version. Towards the end of the final level, you fight all the bosses from the previous five levels again.
Evolving Weapon: The hero starts out tossing pitiful fire balls at enemies, but after collecting enough glowing crystal balls it will become a long beam of flame.
Giant Spider: The seemingly innocent trapped maiden in the second stage turns out to be one of these.
Hello, [Insert Name Here]: The first thing the game asks when you insert your coin is "Let me know your name" and allows you to enter a three letter initial. Guess what's the most common entry. And yes, it does get spliced into the dialog at several points in the game.
I Fell for Hours: After climbing the Wardner's castle in the next-to-last level, the hero falls down a shaft all the way into the basement.
Mood Dissonance: The game has dark horror elements and its color palette is predominantly black, brown and gray. However, most of the characters look very cutesy — with the hero in particular looking like a doofus whenever he takes damage, and some of the music giving the impression the hero is just taking a walk in the park.
Outside-the-Box Tactic: The Wardner's second phase can be a Zero-Effort Boss if you have two fairies and then get the second one to fly where the monster spawns. He'll die in just two seconds.
Peninsula of Power Leveling: In the second level there is a spot where you can repeatedly kill a bunch of easy Respawning Enemies. If you know where the level's hidden clock is and you have the equippable one at hand for extra time, you can get a lot of money and fire power with this trick.