So basically, you know those chests you open all the time? Well just keep doing it until you get a strange lil guy. It has 2 silver rings around some kind of masks.

use it. Then use the stone hand to get the portal. It will look like a normal portal at first, but when you enter it, you will enter the boss arena.

This guy is a MAJOR copy cat, he uses all your weapons.

Sword: This guy will slash so many slash projectiles at you, what he doesn't know is that you can just put a melee to your face and block them all, or you could run. Some swords also fly and shoots at you, either kill them or wait them out.

Bow: This guy will shoot a spread of arrows at you, teleport far away or try to matrix that ♥♥♥♥. There's also flying bows that are basically the same as flying swords.

Revolver: This attack sucks, he shoots a BUNCH of purple homing project tiles, you should block them, but be warned: he can attack you while you're still blocking all those orbs from double hell.

Axe: he will pull a "pssh, nothin personel kid." and teleport behind you and try to do a area attack, just teleport away.

Shotgun: This will shoot three bullets at you, these hurt like hell, so teleport away quickly.

Rifle: This will shoot a bunch of red orbs at you, you can either block them or teleport away as these don't home in.

electricity: fires discs that bounce way too long (by Ze-dude)

Might use haze (by ze-dude)

fir and ice: don't know

At half health He will go teleport the middle of the arena and quickly do a big splash attack, just stay at the edge of the arena.

(pls comment any other weapons i can't remember any others)

So, when he spawns, spam the thing where you smash two fireballs together and point your hands out and shoot it. Why? it spawn these tiny embers that do a lot of damage (also there is a perk that gets rid of them, if you wanna fight this guy, DO NOT GET IT.)

If your health gets low, run like hell, or try to melee the flying swords/bows because melee weapons have some life steal.

Good job!! enjoy your super secret weapon!