Herobrine Boss is a mod that adds Herobrine and the Alpha dimension.

Alpha dimension :

Enter the dimension :

You have to build the totem of Herobrine with 8 Gold Blocks, 1 Netherite Block, 4 Redstone Torches and the Herobrine Totem block.

And you have to activate the Herobrine Totem block (costs 50 XP levels) with a right click and a Clock in your hand.

Craft of Herobrine Totem :
7 Netherracks + 1 Nether Star + 1 Ender Star :

How to build the totem of Herobrine :

Content of the dimension :

There is only alpha blocks, items and mobs in this dimension with alpha textures and old features like in alpha versions of Minecraft.

Some examples of alpha features in the dimension :
Spamming bow ; TNT activated when broken ; instant heal food ; no sprint ; spam click ; no shield ; sword blocking ; old mobs with old sounds, features and loots ; arrow crafted with apple or with Alpha Iron Ingot instead of Flint ; glitched Wooden Stairs and Cobblestone Stairs models in inventory ; old Grass Block sound when walking on it ; removing whool from a sheep when punch it...

Leave the dimension :

You just have to right click anywhere with a Clock (if you don't have it you can mine in the dimension and craft it).

Herobrine have 3 different forms and spawns only in Alpha dimension (there can only be one Herobrine in any one place) :

Stalker :

Spawns randomly in the Alpha dimension, don't move and is invulnerable, can place structure and dispear, or can don't do anything exept to stare the nearest player.

If a player hit or right click on him, there is a pourcent chance to start the boss combat with the Herobrine in boss form.

Screamer :

Spawns in a random moment to a player and scream, can be attacked, have 50 HPs but dispear after 5 seconds.

If "killed", it starts the boss combat with the Herobrine in boss form.

Boss :

Apear only when the boss fight starts, teleports all players who are already in the dimension to the spawn of the dimension.

Have 600 HPs and can thrown lightning bolts, make explosions, place lava, spawns possessed mobs, eject players to the sky.

When killed, it gives the Herobrine Star and a lot of XP and a loot chest apear to the spawn of the dimension and every player (even they didn't fight Herobrine) can open it only one time to obtain the Herobrine Staff and a lot of XP)

There is custom items :

Ender Star :

Obtained by killing the Ender Dragon, used to craft the Herobrine Totem with a Nether Star and Netherrack.

Herobrine Star :

Obtained by killing Herobrine, has no utility.

Herobrine Staff :

Can be obtained with the loot chest from Herobrine when killed.

When you press U key, you have an interface to change the mode of the Herobrine Staff, activate/deactivate the mining and the repairing with XP.

The modes of Herobrine Staff are :

None (when no mode is selected) : you can attack in melee or at distance to make some damages.
Flame : you put on fire enemies that you hit and you shoot, you can place fire on the floor when shoot.
Explosion : you can make an explosion where you are looking.
Lightning : you can throw a lightning bolt where you are looking.
Propulse : you can propulse entities that you are looking if you don't sneak, and if you are sneaking you can propulse yourself where you looking and cancel fall damages.
Teleportation : you can teleport you where you are looking in a high distance

Other things :

Kill a mob named "Notch" :

When you kill a mob named "Notch" it drops an Alpha Golden Apple (that heals you 20 health points when right click).

The Alpha Golden Apple can also be crafted with 1 Alpha Apple surrounded with 8 Alpha Gold Blocks.

Time Travel crafts :

You can put any alpha item and a Clock in a craft to transform the alpha item to an normal item (example : Clock + Alpha Bow = Bow (the real vanilla Bow))

Commands for admins :

/toggleenableherobrinespawn : Toggle enable Herobrine Stalker and Screamer forms can spawns
/changeherobrinephase : Change the Herobrine phase between 0 and 2 (0 : Herobrine don't spawns |1 : Herobrine Stalker and Screamer spawns | 2 : Herobrine Boss spawned and there is the boss fight)
/herobrineasspawned : Toggle True/False detection that if Herobrine Boss already spawned
/togglecanopenalphachestherobrineloot <player> : Toggle for a player to allows to open or not the loot chest of Herobrine when he die
/despawn <one entity> : Make the entity despawn (not killed)