This article describes a feature in the first Apocalypse Rising
The Ninja Perk, originaly called the stealth perk, is a permanent buff that you can chose in the main menu in Apocalypse Rising. Ninja Perk is one of the 4 perks that you can choose in the main menu. The Ninja Perk allows you to be almost-completely silent, allowing you to sneak up on unsuspecting players, and you have to be even closer for zombies to detect you. The only thing this Perk doesn't silence is your gunshots.
AppearanceThe Ninja Perk appearance is a Ninja with a Katana, going to slash the air. The background is a dark yellow/light orange color.
You're trained in the art of stealth! You make zero noise when walking and jumping, and you must be closer for zombies to detect you.