Turbo Overkill/Gameplay

Difficulty
When starting a new game, you have to select the difficulty.

Zhen
Zhen is the currency used to purchase weapon upgrades, ammo, and augments from vendors. It can be picked up from killed enemies. Zhen Chunks are hidden in levels and grant 7,000 Zhen.

Teratek Crate
Teratek Crates contain an augment but require a Teratek key to unlock. The key is hidden near the area.

Cassette Tapes/Tech-Chips
Hidden in each level are 3 cassette tapes and 3 tech-chips. Collecting all 3 cassette tapes will unlock a secret level while collecting all 3 tech-chips unlocks a game modifier that can be toggled. Both features can be accessed from the level select screen.

Powerups
Powerups provide an effect for a short amount of time.