It's a really great Sonic-like game. The end-level bosses can be quite tricky, and I'm on normal difficulty. Gameplay-wise, Lilac is similar to Sonic as she's fast and can launch herself like a missile by using Dragon Boost. Easy with stages, harder with bosses. Carol is like Knuckles. She has difficulty getting through stages and an easier time with bosses. Milla is more like Tails..