f you're trying to activate the secret song "Mad Hatter" by Avenged Sevenfold on IX, you simply need to shoot four hidden coloured coins around the map. Once you've shot all four, the music will start playing automatically.
Here are the four coin locations:
Red Coin – Ra Tower (Burial Chamber)
- Go to the Burial Chamber beneath the Ra Tower.
- Look behind the chest near the Mystery Box location.
- Shoot the red coin.
Green Coin – Danu Tower (Entrance)
- At the entrance to the Danu Tower, look to the left-hand barrier.
- The coin is attached to the underside of a wooden platform.
- Shoot it.
Blue Coin – Odin Tower (Entrance)
- In the Odin Tower entrance, look into the grated-off hole in the wall.
- The blue coin is mounted on the side inside.
- Shoot it.
Purple Coin – Zeus Tower (Altar Room)
- Head to the Zeus Altar Room.
- Look up at the ceiling above one of the pillars to spot the purple coin.
- Shoot it.
Once all four coins have been shot, "Mad Hatter" will immediately begin playing for everyone in the game. You can activate it once per match