On the same day I got Arkham Origins, I also played the demo to Sonic Lost World. I've mentioned before that I've been looking forward to this game. But, after finally playing it for the first time, I've discovered that SEGA has made some highly questionable changes that, let's just say, I'm not a fan of.
First of all, Sonic's speed has been terribly butchered. You have to hold down the right trigger in order for Sonic to actually run fast. If you don't, Sonic will jog at a speed slower than that of Sonic 06. This change was probably made to help the platforming aspect, but I still find it weird that they would do something like this to the blue blur.
Another issue I have is the enemy placement. The enemy placement in this game is SUPER jerkish. I'll just be running along and, all of a sudden, a badnik appears directly in front of Sonic. As a result, I have no time to react to it, I take a hit and lose my rings. That happened to me about three times throughout the course of the level.
Though, that's not to say that this game is completely terrible. This game's presentation is top notch and the level design looks pretty good so far. I'll have to get the full game before I can have a solid opinion.