Legend of Dungeon

Push the musician, wizard and barkeeper into the lower-left corner of tavern then hit them multiple times.

There is a spell book that will give you ability to summon random objects. This can be potion, monster, or a simple particle. It also can spawn a Boss. You can keep using it repeatedly until it spawns every Boss in the game, which are Lich King, Vampire, Devil, Unicorn, Deep Minotaur, Robot, and Giant Skull. Note: Giant Skull can also be found on floor 26, and is the toughest Boss in the game. Do not fight it until you have a very good weapon and do at least 300 damage per hit. Run away If it spawns from the book and you are not ready.

The Nekomancer can be found on floor 27 of the dungeon. The remote control will be needed to get there. After reaching floor 26 (the treasure floor), begin using the remote control randomly along all the rooms. It will eventually trigger some hidden stairs that lead to floor 27. Do not allow the kittens over there to die. After finding the nekomancer, high five him and bring him back to the tavern.