YOU NEED GECKOLIB VERSION 4.2.2 TO PLAY.
You can be Hunter and travel to other dimensions or you can be Phantom using phantom's blood and use Touch of death, dash and more abilities.
Instruction:
Use a syringe with phantom's blood to become Phantom.
Use Nethe-iron armor to become Hunter.
You can find the laboratory in the meadow biome
Controls:
Phantom (045):
[G] - heal
Shift + [B] - Stalker Mode
[R] - Dash
[Z] - Present (Player strengthens himself)
[X] - Touch of Death
Phantom (098):
[G] - heal
Shift + [B] - Stalker Mode
[R] - Dash
Hunter:
Armor adds effects Dolphin's Grace, Water Breathing, Strength, Speed, Jump Boost and removes poison effect.
[V] - make a portal
If player is Phantom and wears Nethe-iron armor, it will explode
