Sonic the Hedgehog 4 Episode: II

[NICKtendo DS]

The Hedgehog Engine is only a graphics engine that has something to do with lights and shadows. S4Ep1 would not use this engine, as it uses a mixture of tiles, sprites and 3D models, so it doesn't make sense if it did.
I played S4Ep1 when my brother still had his PS3, and I liked it while it lasted. Not as good as 1-3&K, but not bad.
The engine in S4Ep2 has been confirmed to be fixed based on the complaints of the first episode's engine. These improvements are also carried into Episode Metal, that includes harder versions of 1 of each of S4Ep1's Zone's Acts.
I have a good feeling about S4Ep2. When Episode 3 is done (a trilogy and the inclusion of Knuckles is practically a given), they should make these one game in a way similar to S3&K.