The Wall Of Flesh is a boss with 8,000 HP. Each of his three eyes has a different attack, and he can grab you with minion-like biting tentacles. To kill him, construct a very long bridge in the hell area. Try to build it as straight as possible in order to allow yourself to move away easier while ranging him. He appears after you defeat a demon with the Guide voodoo doll, then throwing doll into the lava.
The Queen Bee is a pre-Hardmode Boss found in the Underground Jungle biome. She appears after the Larva inside the Bee Hive mini-biome are destroyed. Note: Destroy all hive blocks surrounding the larva first to prevent bees from appearing during your fight with the queen.
The fishing quest resets at 4:30 a.m.; starting as early as possible is recommended. Bring a chest, such as the piggy bank, with plenty of empty inventory space. Find a location where you can catch the day's fish and have plenty of bait with your fishing gear. After catching a fish, store it in your chest. When the quest fish is not in your personal inventory, you can catch it again. Continue to catch and store the quest fish through most of the day. Transfer all the caught fish to a chest next to the fishing NPC. Use any alternate characters you have, with each character taking one quest fish and turning it in. This can be done faster by setting your characters' spawn point to a bed in the fishing NPC's room, as well as enabling the auto-pause option in the settings menu.
Tim is a skeleton mage with 200 HP. Although not too difficult to kill, he will teleport and fire spectral projectiles that pass through tiles. He is encountered while randomly digging underground.
You must reach a total of 15,000 gold. Go to the underground caves where you fought the Dragon Skull and get near the save point. Consider equipping the Doughnut Ring (from the doughnut quest) and the Scroll of Horwroth (from killing the Dragon Skull) to Leon and set him to be the first character in your party's order. The Horwroth scroll gives you access to a powerful area of effect spell that one hit kills most monsters. Begin the battle, cast Horwroth with Leon, then attack as usual with everyone else in your party. Because you also have the Doughnut Ring equipped, you should have the first turn each time and kill all your enemies with the first cast of Horwroth. After each battle, restore your energy at the save point before resuming gold farming.
The Groom is a top hat wearing zombie that spawns during a blood moon after a few other zombies are killed. He can be found easily in a jungle biome but also appears in the regular biome.