The Sonic the Hedgehog film series is a fairly excellent lesson in making video game movies. They strike an excellent balance between giving longtime fans what they want and providing a fresh experience for newcomers. They're straightforward, fun, and charming films for a mixed audience of kids and their nostalgic parents. There are plenty of little nods to details from the games, some of which are more engaging than others. One popular fan theory suggests that Sonic the Hedgehog 3 might feature the debut of Metal Sonic, but those who enjoyed the previous entry may recall a similar sensation.