The bosses listed below may be encounterd in a new world, and are not subject to any restrictions.. However, keep in mind.. Every time you fight them does not mean you will get the same luck or loot, this is all subject to vary according to how this world.. operates, here is the first few bosses:

Also you may encounter dialogue with them before and after the fight, this will determine how the fight begins, or the vore commences, be warned there is good and terrible ways to fail...

"Something is watching!" -echo before she spawns..

She is the watcher and will haunt you, this boss has a chance to spawn every time night dawns, but if you don't defeat her before day.. then she will escape and all your effort in vain.. She has a base of 3000HP and can even vore you if your not carefull and lose all or most.. of your HP to her. depending upon the mode she may even have a second phase, one where she loses all cuteness and shows her hellspawn nature at 1000HP..
Boss: Eyase_The_Dragon

Moveset: She will constantly charge at the player sometimes spewing flames, but this can also be a series of charges if she spawns in a corruption.. Additionally in phase 2, she will start to light the ground on hazardous flames, her base DMG is 25 so she doesn't deal too much, provided you have.. maxed life.

"The world is bound!" is the message before Rosxie is summoned!

This next one is part of the corruption within your world, there is actually three different possible corruptions that may occur.. Thise one is the cristane corruption and will make blood spread to nearby spots.. She has a base of 5500HP and even has a second phase where her collar breaks.. once this happens corruption will spread until she is defeated, this phase has an additional 3250HP and does more damage..
Boss: Rosxie_The_Dragon

"Your head aches from the air pressure!" is a message before Nebulisa spawns!

Alternatively you may run into Nixe corruption that spreads like echoes and toxins, this is extremely deadly to those who use magic, and is an area.. that is not recommended to use any form of mana, otherwise you may anger deeper spirits, or deplete your mana reserves even quicker.. The boss here has a base hp of 4125HP including a second phase that has an additional 2000HP. However, her second phase is different she actually drains mana for each hit, and these attacks also become more rapid and unpredictable.
Boss: Nebulisa_The_Derg

Warning! the next boss requires you to have beaten either Rosxie_The_Dragon, or Nebulisa_The_Dragon!
Go on and explore there is a dungeon that awaits, however an NPC has been given a dreadfull curse that cannot be removed during daytime, only start this.. during night, this next boss has 9500HP and does significantly higher damager than any of the previous ones, she even has three heads that each individually have 2500HP. The first Hydra boss that is meant to shred newcomers to the dungeons..
Boss: Hyilse_The_Hydra

The last place you need to visit is molten and it's furious too, this last place is considered the underworld, and should not be taken lightly, you will need.. to defeat all the previous bosses in order to even be able to summon the last normal mode boss, this one has a base of 13500HP along with 20 sunfurys, each has 850HP.. She will chase you through the underworld till you burn in lava, or maybe you just die to her sunfuries.. (High Damage)
Boss: Helfuse_The_Dragon

Once you beat Helfuse your world can be changed, new material will be added and you will unlock hard mode, nothing is easy anymore..

The first hard mode boss is of the third and most dangerous corruption, the hallow in which their is a bunch of broken and shattering spots all over. This one will probably be.. encountered first and foremost, she has a base 39000HP and also has resistance to 93.5DMG, ontop of this she can also spawn minions every time she loses.. 1000HP this can be quite troublesome since she can also fly freeroam. Additionally, she has a second phase with 15000HP that does a lot more damage, and leaves any.. one who fails to rot in her stomach~ If her Hallow biome merges with a Cristane or Nithe corruption, her HP may double and her form overcorrupt, this will make.. her bossfight a LOT harder.. Also if you fight her in the day she will become enraged, and all of her attacks will one-shot most gears!
Boss: Hashia_The_Dragon

Lesha the dragon is the guardian of the skies, and will appear for those who are unsuspecting, she bolsters a base of 20,000HP and has a twin called Rasha, that has 22,000HP they both have 50DMG resistance, and both have a second phase, one summons sky warriors, whilst the other will tear and smash humans in close combat, once they lower below half health beware!

"The jungle grows restless!" is the message to let the player know the jungle is changing after beating Lesha!

The next area you need is the jungle before facing her you will need to mine ore in the jungle, that has just spawned from beating the hallow boss.. However beware traps litter the jungle once it's active, and it will change, like the jungle itself wants to eat.. Planthera hates flower killers.. find 3 bulbs and she will be summoned, beware she is strong! Her base is 30000HP and she also resists 50DMG and deals Poison and blindness effect.. Planthera may also shoot deadly pellets and occasionaly overgrow creating moss golems with 2000HP.
Boss: Planthera_The_Derg

"Screams echo from the temple walls!"

An impenetrable temple awaits those who have bested planthera, however Mechia awaits them, and a golem dragon is really hard to defeat, not only does she have 125000HP, this golem has occasional missions called the Auto, they each have 10000hp and deal a lot more damage. Strategy is key to winning this first phase, then she.. drops the minions and machinery infuses to the dragon's body, making her break free from her rocky state.. her new form is very fast, and deals mass damage. an additional 30000HP is in this second phase.
Boss: Mechia_TheAutoDerg

Then the ocean await, a special boss that can only be summoned via the fish of ages, with a 0.25% change of obtaining from regular fishing in this world! Orce is big as the ocean itself, but did you know she can also fly float through the sky? This boss has 50000HP and loves to charge, she also has.. a huge splash radius if she lands on surface, known to deal mass splash damage to tiles almost in the next biome..
Boss: Orce_The_Crunomaly

"The world is turning!" this is the message after beating Orce signifying the Solar Events.

"The Celestial Clock Chimes!" this is the message before Mother Ethernalis spawns.

You are now ready to face Mother Ethernalis! The dragon in this profile is her, her entire body has stats, her head and chest have 85000HP, her arms both have 50000HP.. along with her legs that have 75000HP, she is easilly the hardest boss, and cannot be beaten without first encountering.. the solar event after beating Orce. She can summon multiple minions from flying dragons with 3000HP to just regular living fire with 1500HP.
Boss: This Profile

"Ancient spirits of the fallen arise!" will sound after beating Ethernalis, and you will be set into INSANE mode!

In this mode three corruptions will spawn overtaking the entire world, the hallow, crimtane, and even nebulis corruptions will cease to exist.. Once you begin this new insanity mode journey, there is no turning back!

One of the corruptions is the radiation where one can obtain Iridium, fighting this boss will be unlike anything the player has experienced before. Zinia is a radiation dragon her base stats include a 200,000HP radiation shield, and then a base of 50,000 HP in her first phase. The player may also experience radiation, this will deplete their HP by a incremnetal % every time they are hit by Zinia. In phase 2 her seal is broken, and the land trembles. an additional 135,000HP will accompany this form, and she will strike with otherworldy force!
Boss: Zinia_CursedDerg

This is where you can get a general guide of the world... the numbers by the item indicate either defense, or offensive points. Magic items will also have either a mana, or dark mana cost.

General armor and weapon set materials:
Wood (Helmet[1], Chestplate[2], Grieves[1])
(Sword[3], Mace[2], Bow[2], Spear[4])

Copper (Helmet[2], Chestplate[3], Grieves[2])
(Sword[5], Mace[4], Bow[4], Spear[5])

Tin (Helmet[3], Chestplate[4], Grieves[2])
(Sword[6], Mace[5], Bow[5], Spear[5])

Lead (Helmet[5], Chestplate[6], Grieves[3])
(Sword[7], Mace[6], Bow[6], Spear[7])

Iron (Helmet[5], Chestplate[6], Grieves[4])
(Sword[8], Mace[7], Bow[7], Spear[9])

Silver (Helmet[10], Chestplate[15], Grieves[5])
(Sword[10], Mace[10], Bow[10], Spear[10]) "Tip: all silver weapons only work at night, during the day their stats are 0!"

Rawsteel (Helmet[7], Chestplate[8], Grieves[5])
(Sword[9], Mace[8], Bow[8], Spear[10])

Gold (Helmet[5], Chestplate[5], Grieves[5])
(Sword[10], Mace[10], Bow[10], Spear[12])

Refined Steel (Helmet[8], Chestplate[10], Grieves[5])
(Sword[6], Mace[5], Bow[5], Spear[5])

Tungsten (Helmet[9], Chestplate[10], Grieves[6])
(Sword[6], Mace[5], Bow[5], Spear[5])

Platinum (Helmet[10], Chestplate[12], Grieves[6])
(Sword[13], Mace[12], Bow[12], Spear[15])

The following are deeper ores, that are exclusive to boss-fights, and lower in the world!

Cristane (Helmet[18], Chestplate[20], Grieves[12])
Set Bonus: Causes bleeding to your melee and ranged attacks! + Minor rise in life regen and movement speed!
(Sword "Fatal Grimoire," [30], "Bloodmasher," Mace[25], "Blood Bow," Bow[15], "Cristane," Spear[35])

May only be obtained from beating Rosxie!

Nithex (Helmet[15], Chestplate[20], Grieves[10])
Set Bonus: Causes Nithe flames to add to your enemy! + Increases minion limit by 2!
(Sword "Bane of Nithane," [35], "Nebulizer," Mace[20], "Nithe Blaze," Bow[20], "Nithen," Spear[40])

May only be obtained from beating Nebulisa!

Meltise (Helmet[18], Chestplate[25], Grieves[12])
Set Bonus: Immunity to all flames! + damage boost of 20%!
(Sword "Equalizer," [37.5], "Metto," Mace[22.5], "Space Ray," Bow[21.5], "Mithe," Spear[40])

A mysterious ore appearing after defeating both Rosxie and Nebulisa!

Molten Hadite (Helmet[22.5], Chestplate[27.5], Grieves[15])
Set Bonus: Emits a dim glow of lava, and increases all stats minorly! + hellflames follow you!
(Sword "Inferno," [45], "Ignitor," Mace[30], "Hellbow," Bow[29.5], "Moltenic," Spear[42.5])

Obtained from the depths of the world!

"The souls of Light, and Dark have been unleashed!"

Celestial Bronze (Helmet[25], Chestplate[30], Grieves[20])
Set Bonus: Defends Dually against beast-class monsters, and deals bronze poison to them!
(Sword "Ripzer," [50], "Pendant," Mace[30], "Bronze Bow," Bow[30], "Trifold," Spear[45])

One of the four ores obtainable from the souls!

Moonshine Silver (Helmet[30], Chestplate[35], Grieves[20])
Set Bonus: All stats *1.15 at night, and deals double damage to wolffolk!
(Sword "Thalius," [55], "Crusher," Mace[40], "Luna Bow," Bow[50], "Seezer," Spear[40])

One of the four ores obtainable from the souls!

Imperial Gold (Helmet[35], Chestplate[40], Grieves[25])
Set Bonus: Reduces all incoming damage by 30%, you can also dash!
(Sword "Dawnbridge," [60], "Goldizer," Mace[35], "Golden Bow," Bow[55], "Caesar," Spear[75])

One of the four ores obtainable from the souls!

Titanium (Helmet[40], Chestplate[50], Grieves[30])
Set Bonus: Deflects every second attack opponent uses, and reflects 15% damage back to them!
(Sword "Excalibur," [90], "True Crusher," Mace[50], "Daedaleus Bow," Bow[60], "Razor," Spear[80])

One of the four ores obtainable from the souls!

THESE NEXT ORES ARE UNIQUE TO INSANITY MODE ENABLED WORLDS, if you do not pre-select this feature, disregard this portion.

Iridium (Helmet[75], Chestplate[80], Grieves[65])
Set Bonus: Radiation will deplete HP faster, but gives a 50% damage reduction!
Side-effect: You will have two hit boxes, and must use the shield to block enemy attacks!
(Sword "Radizier," [300], "Nuclear Mace," Mace[275], "Soul Hunter," Bow[175], "Rize," Spear[315])

Radizier requires an additional Radiated meowmere, which is very hard to obtain.

Iridium is gathered from the ground below the Radiated corruption!