They have made it feel like a much more natural progression than it was originally. You can basically follow the quest lines and youll be max level only doing a fraction of the zones. you also get a free lvl ninety if you buy the upcoming xpac.
At least when I got back to Crash Bandicoot, there was some trial and error in there. Sonic on the other hand...THERES NO DAMN AIR BUBBLES UNDER THIS DAMN WATER!!!!!!!!!!! Tails, come give me mouth to mouth!
Also, Golden Axe. Since when was this so hard? If that little gnome takes my potion one more time....kablamo.
Streets of Rage wasn't the hardest though, and still one of the greatest game series of all time.