Finding all secrets is necessary to achieve the "666%" completion status often cited in community guides.
: To access this, you often need to manually change your computer's system clock or perform specific inputs between levels 66 and 67 in the menu.
: Like a mix of Quake and Super Meat Boy , survival depends on maintaining speed through jumps, bounce pads, and teleportation.
: The DLC includes "Helliku" levels that are unlocked by solving specific environmental riddles within standard stages. Achievement Guide Highlights