eCrew Development Program

In 2010, McDonald's Japan collaborated with Nintendo to create eCrew Development Program, a Nintendo DS game designed to train new employees. The game received some media coverage, but it was only given to McDonald's Japan employees and required an individualized password to play.
The game teaches the player how to cook and serve various McDonald's menu items and perform other restaurant tasks, and was used to train new restaurant employees. It has several game modes, including simulations of food preparation and customer interaction. It also has quizzes, player profiles for employees and managers, and performance statistics.

Résumé

eCrew Development Program is a Nintendo DS game that was created to train McDonald's Japan employees. It was never officially released to the public, and is protected behind a password. It was considered lost media until the ROM was posted on the Internet Archive.