To get Skull Guitar in Blox Fruits, reach level 2,300, solve the Haunted Castle puzzle, and craft it at the Weird Machine. This Mythical gun in Roblox has large hitboxes, stun effects, and area attacks that make it useful for PvP combos and grinding.
The unlock combines a full-moon starting condition, a simultaneous zombie kill, and several environmental puzzles. The biggest trap is copying another player's puzzle answers. Your grave counts, trophy arrangement, and pipe colors are the clues that matter, so work through your own Haunted Castle carefully.
What do you need to get Skull Guitar?
You need access to the Third Sea and a character at level 2,300 or higher. The puzzle takes place at Haunted Castle, and you must begin it during a full moon. Completing its stages unlocks the Weird Machine, where you craft the gun.
Crafting materials and where to get them
Set aside these materials for the initial craft. The puzzle unlocks the machine, but you still need to pay its material cost.
| Material | Required quantity | Supported ways to obtain it |
|---|---|---|
| Bones | 500 | Defeat enemies such as Reborn Skeletons, Living Zombies, Demonic Souls, and Possessed Mummies |
| Ectoplasm | 250 | Defeat Ship Deckhands, Ship Engineers, Ship Stewards, Ship Officers, or Cursed Captain |
| Dark Fragment | 1 | Defeat Darkbeard |
| Fragments | 5,000 | Complete Raids or obtain them through the Shop |
If you're still working toward level 2,300, the Blox Fruits beginners guide covers progression and combat basics before you tackle this unlock.
How do you start the puzzle during a full moon?
Visit the graveyard on the left side of Haunted Castle at night during a full moon. Look for the interactable gravestone marked with a question mark, then use its dialogue to start the puzzle.
A full moon appears roughly 180 minutes after the previous one. Watch for the full-moon notification rather than assuming any nighttime visit will work.
Follow this interaction sequence:
- Approach the marked gravestone in the graveyard.
- Interact with it and select Pray.
- Choose Yes when prompted.
- Check for the candles around the grave, which indicate that the puzzle has started.
If the gravestone tells you to come back later, check the moon phase. You need both the full moon and the level 2,300 requirement to begin.
How do you defeat all six Living Zombies together?
The first combat check requires you to kill six Living Zombies with a single attack. Defeating six separately will not clear this stage, even if the kills happen quickly.
Find the Living Zombies on the other side of Haunted Castle. Use a gun to draw their attention, then lure them into the Red Lake so you can hit the group together. Gather all six before committing to the finishing attack.
A successful attempt briefly turns the screen black and displays Excellent. If you miss the simultaneous kill, you can try again. Keep the goal simple: gather the complete pack, then land the single finishing attack.
If you're considering Buddha or Magma for this step, check the Blox Fruits fruit prices and rarities guide before spending resources on a fruit.
How do you solve the graveyard signs?
Return to the graveyard after clearing the zombie stage. Along the pathway, compare the graves on the left and right of each row. Interact with the sign on the side containing more graves, turning that sign white.
Count the actual graves, not patches of soil. Work through each row separately instead of choosing one side for the entire pathway.
For example, a row with three graves on the left and five on the right needs the right-hand sign. Those numbers are only an example: use the counts in front of you. When every selection is correct, the screen flashes black and displays Excellent.
How do you turn the trophy layout into a circuit solution?
The next part connects the Ghost NPC, the garden trophies, and the circuit board underneath Haunted Castle. The garden provides the pattern; the basement panel is where you enter it.
Speak to Ghost before reading the garden
Enter the main castle and head toward the room on the right side of the stairs. Interact with Ghost to advance the puzzle. The conversation is brief, so don't wait for a detailed explanation before moving on to the trophies.
Find the garden between the main castle and the Soul Reaper spawn area. Face toward the castle and record the trophy arrangement. A screenshot taken from above is useful because you need to preserve both the positions and the directions of the trophy handles.
Match each garden position to the circuit board
Enter the electrical room underneath Haunted Castle and head left to the circuit board. Change each corresponding line to match the garden clue.
| Garden clue | Circuit setting |
|---|---|
| Trophy handles run left to right | Horizontal line |
| Trophy handles run front to back | Vertical line |
| A tree occupies the position | Blank, with no line |
Check the panel position by position against your screenshot. A correct arrangement triggers the black-screen flash and Excellent message, clearing the way for the colored floor tiles.
How do you solve the colored floor tiles?
Look at the floor tiles in the middle of the electrical room. Each tile must match the colored pipe aligned with it. Inspect the pipes on the walls and ceiling, then click the corresponding floor tile to change its color.
Use the room itself as your answer key:
- Find a colored pipe and identify its matching grid line.
- Change the floor tile on that line to the pipe's color.
- Leave a tile unchanged if its position has no colored pipe.
- Continue until every relevant tile matches.
The final confirmation is Congratulations, rather than the earlier Excellent message. Once it appears, you can access the Weird Machine and craft Skull Guitar.
How do you craft and upgrade Skull Guitar?
Interact with the Weird Machine at Haunted Castle after completing the tile puzzle. Bring 500 Bones, 250 Ectoplasm, 1 Dark Fragment, and 5,000 Fragments, then select Craft to obtain Skull Guitar.
Crafting cost versus upgrade cost
Skull Guitar also has a damage upgrade with a separate material cost. The upgrade increases its damage by +6%, so account for that extra Dark Fragment if you plan to improve the gun immediately.
| Material or result | Initial craft | Damage upgrade |
|---|---|---|
| Bones | 500 | Not required |
| Ectoplasm | 250 | Not required |
| Dark Fragment | 1 | 1 |
| Fragments | 5,000 | Not required |
| Dragon Scales | Not required | 15 |
| Magma Ore | Not required | 10 |
| Result | Obtain Skull Guitar | +6% damage |
Crafting and upgrading together require 2 Dark Fragments in total. Keep the upgrade materials separate from the initial crafting bundle so you know which part of the process you're ready to complete.
Why is Skull Guitar useful for PvP?
Skull Guitar's appeal comes from its large hitboxes, stuns, and attacks that can hit multiple enemies. Those properties help set up PvP combos, while its area damage also makes it useful for grinding.
What does each attack do?
| Attack | Effect | Notable detail |
|---|---|---|
| Undead Notes | Releases exploding green notes that damage a large area | Consumes 20 Energy |
| Soul Shaker | Summons a skull that fires a fast soul beam, exploding on impact and knocking enemies back | The beam travels through walls |
| El Diablo | Summons a rising skull that explodes, stuns enemies, and spawns souls that heal the user | Combines area damage with a stun and healing |
If you're deciding which fruit to use alongside Skull Guitar, the Blox Fruits devil fruit tier list helps you compare fruit options for combat.
For PvP, El Diablo's stun gives you a combo opening, while Soul Shaker's wall-piercing beam adds another way to reach opponents. The crafting grind buys you a gun with several practical tools, and the optional +6% damage upgrade gives you a clear next target once the Haunted Castle puzzles are finished.
