Greg's pet's name is Gregory's Little Friend. In the game you have to do things to make your pet happy and it also costs real money to buy some items. However, Susan doesn't like it because Greg keeps asking her for money for his pet. One day, Greg's account got locked by Manny because Manny sneaked into his account and changed the password. It is based on many of the virtual pet games on the net.
- Diary of a Wimpy Kid: Cabin Fever (First and only appearance)
Known In-game content
- Gregory's Little Friend's Mansion
- Kritterz Kasino
- It is unknown how Manny changed the password without knowing the original one, as most sites require also the original password to make a new one.
- It is based on Webkinz.