Skeletron Prime

The Boss
Skeletron prime is a Hardmode Mechanical boss. He consists of the Prime Head, Prime Vice, Prime Laser, Prime Cannon, and Prime Saw. Skeletron Prime is summoned using a Mechanical Skull at night, unlike his pre-hardmode counterpart, Skeletron. Skeletron Prime doubles his defense and damage while spinning, so stay back and don't get hit, you might get locked in place!

Depending whether you have mobifiers or your world difficult increased, Skeletron Prime's Health and damage will vary, the Prime head, vice, laser and cannon can also individually vary in damage and health too.

like his pre hardmode counterpart defeat him before day or it will enter dungeon guardian mode.

Tips
Try avoiding the bombs from the Prime Cannon, since they do a lot of damage, standing on platforms is a good tip since the bombs don't explode against them. Kill the two melee based arms first, the Vice and Saw, since they will be in your face dealing tons of damage.

Defense, defense, defense! You need defense for this battle, I can't say it enough! Try to get as much defense as you can before you attempt to take down this beast, as him and his four arms are going to deal as much damage as possible in a short time span.

Unique Drops:

Zeta Scythe:1/??? chance to drop.

Prime Laser Arm:1/??? chance to drop from his Laser Cannon arm.