From Sonic Retro
<forumuser name="P.P.A." /> P.P.A. is a German member on the Sonic Retro forums. Alternate nicknames are PPA and PPAChao. He was working on a hack called Sonic MD, which has been canceled for plans of making a ProSonic game with material which he had done at this point, which has been canceled too because he lost interest. The chances that one day he actually might do something are quite low but not entirely nonexistent.
He currently claims to have lost interest in Sonic in general; whether this is mere denial or actually has some truth in it remains to be seen. At the very least, he hasn't purchased any new Sonic games for quite a while now.
- P.P.A.'s channel on Youtube, where you can find a lot of real-console speedruns.