Completed Shadow Generations with all chests, all bolts, and S ranks and this has been the most fun I had with a 3D Sonic game since Unleashed.
Level-design is excellent, we are finally back to the quality of Unleashed. Generations is quite weak compared to it (it already was compared to Unleashed anyway), but Shadow is a must play for anyone interested in Sonic games or a good platformer overall. As with all good Sonic games, it will be a blast to come back to every once in a while for a couple hours, the time to go through all stages again.