Golem

The  is one of the four bosses added in 1.2. It is summoned by inserting a Lihzahrd Power Cell (which is dropped from Lihzahrds and found in Lihzahrd Chests) into a Lihzahrd Altar, though only after Plantera has been defeated in the world.

Location
The Lihzahrd Altar used to summon the Golem is located in the Jungle Temple, which can be unlocked using the Temple Key which drops from Plantera. However, if the player has a Picksaw from a previous fight with the Golem, they can move the altar to another location to fight the boss wherever they like.

Battle Info
Regardless of which phase the battle is in, the Golem will always shoot ricocheting fireballs which are unaffected by gravity and jump around the area in an attempt to crush the player.

Stage 1

 * The Golem's head and fists ( each) will take damage during this phase.
 * The fist closest to the player will launch at their current location at a speed which scales up as the fist loses HP. The fists will instantly retract when they take any kind of damage, but will go through any walls that a player is hiding behind.
 * Once the head is at half health, it will start shooting lasers at the player. It will fire one laser directly at the player at regular intervals. The time between lasers will shorten as the head takes more damage.

Stage 2

 * When the head's health is completely depleted, it will become invulnerable and detach from the main body. Any remaining fists will still function, and the body will become vulnerable to damage.
 * If the fists are still alive, they will launch at the player as in stage 1, but both will be able to target the player at once regardless of which side of the boss the player is standing on.
 * The detached head will float above the Golem firing yellow lasers and spitting fireballs at the player.

Strategies

 * 1) One of the easiest ways to beat the boss is to make a box that he can get trapped in and collect all the traps in the dungeon; set them up in the room somewhere where you can run back and forth and activate it with a button, avoiding the lasers whilst doing major damage with the various traps to swiftly dispatch the boss.
 * 2) Another easy way to kill the Golem is hang with a hook on one corner and shoot with Magnet Sphere and wear full Spectre Armor to resist damage caused by fireballs
 * 3) Build a box around you and use something such as a Death Sickle or a Chlorophyte Partisan to damage him, although you will still take damage from his lasers.
 * 4) Another good way to kill the Golem is to fill the roof of the chamber with Spiky ball traps. Connect the Spiky ball traps with wire, and connect the wire to a 3 second timer. Once you have summoned the boss, turn on your 3 second timer and watch the Golem get destroyed. To make the fight faster, just use any ranged weapon of your choice.
 * 5) Another way to kill him relatively easily is to make a box so that there are only some spaces in it's fist's sides. For that, you need a Piranha Gun. The gun will hit him even when he transforms, so you only need to dodge. To make it easier, if you have Neptune's Shell or Moon Shell, you just need to flood the room (Just dig a water deposit, they are common in the jungle). In merfolk form, the Golem will be slowed down and you will be able to swim like you did have infinite flight. (Tested only with Beetle Armor, not sure with other types of armors.)
 * 6) You can also use Bunny Cannons and Explosive Bunnys to quickly kill the Golem as the Bunny Cannon can constantly be fired and it causes around 350 base damage.
 * 7) Another good way to murder the Golem is wear full Turtle Armor and use Vampire Knives as you will heal to full before he can damage you and the knives shoot about 5-6 knives on average and shoot really fast along with the turtle armor reflective damage and dmg boost will allow you to solo this boss anywhere.
 * 8) A way to do the above strategy and barely take any damage is to make a small area in the ceiling so the Golem's head can fit in and have a separate hole with platforms as the floor. First, use any kind of Grappling Hook and grapple to the first hole and hold down the attack button with Vampire Knives in your hand (Aim down). It is recommended but not required to stay on the bottom and attack Golem's fists first. When Golem goes to his second form, exit the first hole and go to the second hole so Golem's head will get stuck in the first hole and won't do any melee damage to you and his fireballs won't either. When in the second hole, just camp there and keep firing the Vampire Knives. The only damage you will take here is Golem's Eye Lasers but the healing effect of the Vampire Knives will regenerate your health faster than the Lasers can damage it. After trying this strategy out it may be noticeable that his second stage is easier to defeat than defeating Golem in his first stage. As said from the above strategy, this is very easy (disregarding getting the Vampire Knives) to defeat Golem and you can easily solo him anywhere.

Bugs

 * Sometimes, if Golem gets stuck in a wall, it will have a crooked head and its eyes will be in the wrong position.
 * Occasionally, a temple will spawn without an Altar to summon the Golem. The only way to correct this problem is making another world.
 * If the Altar spawns on top of a destroyable block (such as a trap), destroying it will allow to pick it up and bring it somewhere else.
 * Sometimes when Golem is summoned, the head can get stuck inside the lihzahrd bricks and you will not be able to defeat him; unless you have a Picksaw or weapons that can attack through walls with you.
 * If rows of platforms are built up in the summoning room, the Golem will always attempt to spawn above the highest row, which can make it only ever spawn stuck inside the roof if the platforms are too high.
 * On console versions, the door to the temple can be broken with a high tier drill or explosives, such as the Drax and Sticky Bombs. As such, the Golem can also be fought and killed, before Plantera has been defeated. (Seems fixed as of 1.2.1.2)
 * Sometimes, if summoned in a Jungle Biome, The Destroyer, Queen Bee, or Ocram can spawn. (Note: this bug works on console only)