Indie developer Headcannon confirms he helped Sega update Sonic Origins Plus

You may remember how Headcannon, the developer of Sonic Mania, was involved in Sonic Origins. Now, following the announcement of Sonic Origins Plus, the developer of “indie games and utilities” has confirmed that it has “once again” partnered with Sega to revamp the project this time around.
In a long series of tweets, he explained how he helped bring Amy into the spotlight, helped with Knuckles in Sonic CD, and was able to provide “a few extra updates and improvements” to make this collection “better than it could be”. . Here is the ad in full:
Head gun: It’s coming – Sonic Origins Plus! We are pleased to announce that we have once again partnered with SEGA to update this project; You know we can’t resist Sonic! Here’s some of what’s in store for you in Origins Plus:
We were excited to hear that SEGA wanted to make Amy playable, and we couldn’t pass up the opportunity to help her get some attention! New playable characters need new sprites, and our own @ASStartShow certainly corresponded to the design task, while @DashPadSPD data management is done.
Knuckles is now playable on Sonic CD! As with the playable Amy, we were excited to provide new graphics to complement SEGA’s efforts to make this possible.
Along with SEGA’s work to update the collection, we’ve also been able to provide some additional updates and improvements to help make the game the best it can be! We appreciate their openness to our feedback and suggestions.
We are very proud to have had a hand in creating the best in this collection; Sega has given us a lot of credit by allowing this and we really appreciate it! We can’t wait for you to experience it!
As previously reported, Sonic Origins will add 12 Game Gear games. And, as noted above, there will even be new playable characters. It will arrive on June 23rd and this time there will be a physical release. You can find out more in the announcement: