|Delusion disclosure: This article or section takes place during Chris's phase of role-playing as Sonichu. He may refer to his Christine Chandler personality and physical body in the third person by using terms such as "mama".|
December was the 12th and final month of 2020. Chris uploaded more audio clips for the Sonic World mod this month, and confronted the creator of a mod that he had stolen content from. Chris also once again threatened that the Dimensional Merge would start after BABSCon 2021 was canceled due to COVID-19.
- 4 December - Chris answers more questions through Discord.
- 9 December - Chris records the Chris Chan Sonichu & Magi-Chan voice clips for the Sonic World Sonichu mod.
- 9 December - Chris records the Chris Chan Sonichu human form present voice clips for the Sonic World Sonichu mod.
- 10 December - Chris begs for money on social media for the first time in 152 days.
- 11 December - Chris advertises "personally approved" Sonichu medallions made by Praetor on Twitter.
- 14 December - Chris records the Chris Chan Sonichu human form classic voice clips for the Sonic World Sonichu mod.
- 15 December - Chris releases a Chris Chan Sonichu human form retexture mod on GameBanana.
- 16 December - An uncut version of The Create Unknown interview with Chris is released.
- 20 December - Chris makes a public apology on Twitter regarding him stealing mods.
- 25 December - C-Mas.
- 26 December - Chris comments about his belief that Clyde Cash and other notable trollsonas are alternate dimension chroniclers.
- 26 - 27 December - Chris confronts the creator of the Sonichu mod for Sonic World.
- 29 December - BABSCon 2021 is delayed to 2022 due to COVID-19. Likely as a result of this, Chris makes a cryptic tweet stating that "The Merge is on.".
- Sonic World Magi-Chan voice clips
- Sonic World Chris Chan Sonichu voice clips
- Sonic World Human Chris Chan (Classic)
- Sonic World Human Chris Chan (Modern)