Buy the console version. This one is just a worst version. Unlike Sonic Colors DS, which is good on it's own. Of course, it's still very good. The differing levels are enjoyable, but not worth buying another game. That's why I only rented it.
Now when i got this game I just had a 3DS no 3DS games.I had saw gameplay of Super mario 3D land,The Legend of Zelda OoT 3D,And Starfox 3D.And they looked like they were played on wii.The graphics were outstanding gameplay looked perfect.Now I had saw gameplay of sonic genaraitons. But sadly i saw the PS3/Xbox verson. I thought all versons were the same. When I got it I saw The great graphics but the cutsene was in text not voice.I was puzzeld.Well classic sonic came first it was 2D gameplay as i expected,but when it got to normal sonic it was 2D to.The gameplay was just like the Sega genisis gameplay!!!!!If you want to try it get the X box/PS3 verson. rent 3D and you got a ripoff.
I mean, the stages we're great! It even had the hard stage.(Radical Highway, Crisis City for the seperate systems)
Though the 2D stages for Modern Sonic was somewhat annoying. Though bringing back the Sonic Heroes Special Stage was a great idea.