Shoot all Secret Skullshots in all stages of a level to unlock Concept Art for the area.
| Art | How to unlock |
| Bunker Concept Art | Shoot all Secret Skullshots in all 6 Bunker stages.
|
| Manor House Concept Art | Shoot all Secret Skullshots in all 6 Manor House stages.
|
| Ocean Liner Concept Art | Shoot all Secret Skullshots in all 6 Ocean Liner stages.
|
| Prison Cells Concept Art | Shoot all Secret Skullshots in all 6 Prison Cells stages.
|
| Steel Mill Concept Art | Shoot all Secret Skullshots in all 6 Steel Mill stages.
|
| Venice Concept Art | Shoot all Secret Skullshots in all 7 Venice stages.
|
| Warehouse Concept Art | Shoot all Secret Skullshots in all 6 Warehouse stages.
|
| Warzone Concept Art | Shoot all Secret Skullshots in all 6 Warzone stages.
|
