Sonic is the also my favorite here are three episodes of Nazo unleashed
Note: Chakra X made these stages.
Power of Nazo


Nazo Unleashed
Stage 1:Chaos Assult


Stage 2: Vengeful Duel


Stage 3:Island Finale Part 1


Stage 3:Island Finale Part 2


Stage 3:Island Finale Part 1 (special edition)


Stage 3:Island Finale Part 2 (special edition)


Nazo Returns Previews




Nazo Returns
Note: Fernistudios got the rights from Chakra X to do a sequel
Nazo Returns Part 1