nCena is a free Chrome add-on that offers a unique twist on image-replacement pranks. Developed by Ash A., this add-on replaces only 1% of web images with John Cena, allowing users to long-term prank someone without arousing suspicion.

Unlike other picture-replacement apps, such as nCage or nGabe, nCena takes a subtle approach. By replacing only a small percentage of images, it ensures that the prank target doesn't immediately suspect the presence of an extension. However, when the replacement does occur, it leaves them extremely confused.

The add-on is easy to install and configure, making it accessible to users of all levels of technical expertise. Once installed, it seamlessly integrates into the Chrome browser, running silently in the background. With nCena, users can enjoy a lighthearted prank that will keep their friends guessing without causing too much disruption.

Please note that nCena is only compatible with the Chrome browser and is classified under the "Browsers" category, specifically under "Add-ons & Tools." It is available for free and is a fun way to add some humor to your browsing experience.