Coming off of Generations, this is one of the most disappointing Sonic games I've played. The series was really going places, just for it all to be thrown away for some weird experimental title. This is where the rut Modern Sonic is currently in started. It's a shame this game is not so great, because the parkour system is actually really interesting and could be a neat mechanic in future games. Everything else weighs the game down, though, which doesn't give the parkour system any room to shine.