Clunky, but really fun! The bosses are nicely designed, the music is great, and the levels are really fun to play! The characterization of Shadow is great, Sonic constantly breaking the 4th wall is hilarious, and being able to pick from over 300 paths is really intriguing. My favorite level has to be Cosmic Fall, aka level 6-4. There are a variety of mission types, from getting an emerald, to finding an objective, activating switches and power switches, getting to the goal ring, eliminating a certain number of soldiers/aliens, so much variety!