That's REAL good
After the official reveal of Sonic Origins today, many Sonic fans had an inkling as to who was working on the project, but now we have official confirmation.
Headcannon took to Twitter to confirm that they are indeed involved with Sonic Origins. In particular, the team is working on Sonic 3 & Knuckles for the collection.
Headcannon’s previous work with the Sonic franchise includes Sonic Mania, as well as the mobile versions of Sonic the Hedgehog and Sonic the Hedgehog 2. In other words, Headcannon is very much familiar with classic Sonic, and Origins is in very good hands.