While it wasn't about choosing a job in the traditional sense, it did have players create Toons and select a "track" which determined their skills and abilities:
* Toon-Up - Heals other Toons
* Cog-Smasher - Deals direct damage to Cogs
* Sound - Uses music to distract Cogs
* Sellbot - Uses gags to throw off Cogs
These tracks essentially acted as different job roles in the game. Toontown Online was a massively multiplayer online role-playing game (MMORPG) that was very popular with younger audiences. It was discontinued in 2013, but there are still fan communities and servers that keep the game alive.