A pretty serviceable handheld version of an HD console game that you'd expect at the time it came out. There are some neat ideas; level design and bosses are hit or miss, though I was surprised by how fun it was to play as modern Sonic even restricted to 2D. It honestly feels a bit too short (even moreso than the console version), but I don't think there was much to expect in that department. It was nice to play for the novelty of it, but it's not a game that I think there's too much reason to go back to today.