Bukkit

you have superpowers, once the mod is loaded, load up a world and use the command /assignquirk <quirkID> to assign a specific quirk or /assignrandomquirk to assign yourself a specific quirk

go into settings-->controls-->gameplay to check your keybinds for the primary and secondary abilities

 Quirk IDs:

1.Fire Breathing - a combative quirk with a destructive nature

2.Blast Jump -  a powerful quirk with a little too much feedback

3.Rage - a quirk which can make you much stronger, for 2 minutes

4.Fierce Wings - a quirk that allows you the best possible start, allowing you a cursed weapon with sword arts and an elytra

5.Float - a quirk allowing the user to shoot projectiles, these projectiles will cause entities to float

6.Poltergeist -  a ghostly quirk with a mischievous touch 

7.Acid - an unstoppable force that can break eve bedrock

8.Air Cannon - shoot things into the stratosphere 

9.Tether - baisically ODM gear

10.Smite - the power of the gods, strike lightning at will

11.Ice Master - king of the cold

12.Bide - the longer you wait, the more the earth quakes

13.<nothing>

14.Void - FREEZE

15.Ignite - kaboom

There is a level-up system, the higher level you are, the more powerful your quirk is, level up by pressing the 'm' key, bear in mind you have to be a specific experience level to level up your quirk (Lvl 1, 35 xp levels, Lvl2, 50 xp levels, Lvl3, 70xp levels

Remember there are also new mobs added, there are many

there are now cursed weapons added, these weapons are essential to kill demons, because otherwise demons can regenerate incredibly fast,  many cursed weapons can be bought from hansuke, a new npc who spawns in a stone brick structure, and many of the weapons have special abilities, and some have sword arts, which are extremely powerful

There are also Uniforms, these are sold by the NPC Ayaka, who also spawns in a new structure, these uniforms come in a chestplate and leggings, and are all better than netherite, the uniforms are all the same in stats, so the patterns and colours are purely decorative.

BRAND NEW Demon Slayers: new mobs that can spawn in the overworld, they range from average player models with weaker cursed weapons to powerful hulks with various superpowers