- Concept art
Acquire the Grubs during the game to purchase the following concept art selections at the 'Gallery' menu. Acquire all 450 Grubs to unlock all the artwork.

Environment Concept Art 1
Box Art Concepts
Environment Concept Art 2
Environment Concept Art 4
Environment Concept Art 3 (Black and White)
High-Res Creature Renders and Concept Art

- All chapters
Load a profile, then push Right two times, Up, Down, 2, 1 two times, 2 at the chapter selection screen. When selecting a chapter that is past your current position, you will get the move upgrades normally unlocked in the intermediate chapters. However, you will not receive any health upgrades.