Extended Keypad for Nakka is a Chrome add-on developed by Erik Márföldi. This free program falls under the category of Browsers and specifically, Add-ons & Tools. It aims to enhance the user experience on Nakka n01 by extending the keypad and providing new score shortcuts.

With Extended Keypad for Nakka, users can enter scores even faster by utilizing the extended keypad. This feature allows for quicker input and eliminates the need to manually enter each individual score. The program also offers new score shortcuts such as 26, 41, 45, 60, 81, 85, 100, 140, and 180, which can be customized to suit the user's preferences.

Overall, Extended Keypad for Nakka provides a convenient and efficient way to input scores on Nakka n01. It streamlines the process and saves time for users, making it a valuable addition to the Nakka experience.