Item Easter Egg:
Every hit you inflict is a critical, and every monster that can join you will. To activate this, you must have the following items (and no other items) unequipped in the Hero's inventory in this order: Cypress Stick, Sharpened Bone, Hat of Happiness, Club, Saw Blade, and Cloak of Evasion. Note: Critical Hits permanently remove Mimics if you defeat them with one. Be careful when using this trick.
Unlimited Small Medals:
You might notice that Man-Eater Chests and Mimics come back constantly- both also drop Small Medals. Mimics drop Small Medals with a 100% frequency, and you don't even have to leave the room for them to respawn- keep examining the chest. However, you can permanently kill off the Mimics and Man-Eaters with a critical hit, so be careful.THIS TRICK ONLY WORKS WITH CERTAIN OLDER DEJAP PATCHES. IT WILL NOT WORK WITH THE NEWEST PATCH, AS IT WAS ONLY A RESULT OF A BUG.
In Granvania, you'll find this secret passageway in the first floor of the castle. Inside, you can find a Hat of Happiness, Naughty Underwear, and a Ring of Prayer.