Ya, the retro engine itself is an almost exact recreation of the old sonic games engine, he is the only one (with canon head) who can make classic sonic games without screwing the franchise, unlike you team sonic
That's why i said an almost exact copy, still, i prefer the retro engine, the genesis games feels akward after getting too used to playing sonic on taxman engine.
Chary
unlike nintendo COUGH
cuz why not, lets download a rom from internet and sell as virtual console making people pay the same of new games but for 30yo games that i can play on my phone