Gearbox has made it a habit of releasing SHIFT codes for Borderlands 2, many of which add Golden Keys that allow players to unlock a community chest in the middle of Sanctuary and acquire powerful loot that's at the same level as their characters.
Last month, Gearbox released six special keys, each of which unlocks a unique Bunkers & Badasses-themed head from Tiny Tina's Assault on Dragon Keep DLC.
They are as follows:
Warrior of Light (Axton Head)
PC: KJKJT-WHBKX-HC9BT-TJBJ3-XJFSJ
PS3: CBKJ3-XTXFW-5KRCJ-9J5BT-J3SRH
Xbox 360: 5JK3B-S6KTB-5BB5X-CRTBB-FC3ZK
Wayfarer Wizard (Gaige Head)
PC: CBKBJ-6ZJW6-HKH3T-B3T33-F5ZRS
PS3: KTKTB-HTXFW-KK6CT-SB5JT-3R6XZ
Xbox 360: KB53B-TH5BB-KBB5R-WXT33-6HR9R
G0ry Gh0ul (Zer0 Head)
PC: CT5BB-XTW5X-9CSBT-3BTTJ-FT5X5
PS3: 5T5BT-ZKRRC-556WB-9TWJJ-ZXWWH
Xbox 360: KB53T-3T6JB-W3T5F-K6B33-Z9W5R
Elven Eliminator (Maya Head)
PC: KTC3T-WTW5F-ZCHB3-BT3B3-XJ9WR
PS3: CJ5JB-RCXFK-K5F53-9TWTT-SKZZF
Xbox 360: 5TC33-9Z5BT-533WR-W63BJ-66WJW
MY EARS ARE RINGING (Krieg Head)
PC: CBKBB-ZHJC6-SWHJT-JJ3BB-3CXHS
PS3: 53CJT-35FFK-WK6KJ-9J5BB-HFJX6
Xbox 360: K3CBB-CHWBB-WJTWF-WXBB3-K3KBK
The Beast Within (Salvadore Head)
PC: WBCJJ-33KWR-S5Z33-BJTTB-65WJJ
PS3: 53CBB-KKFXC-W565T-Z3C3B-SKJ33
Xbox 360: KBW3J-F95TT-W3JKF-WFTBT-KF6XX