- In episode 2, we see Tails repairing the Tornado, having been shot down in Mirage Saloon Zone. The problem is, going by the extra level transitions in Sonic Mania Plus, MSZ is in Westside Island. So why was Tails repairing the Tornado in Angel Island?
- When and how did Sonic get his green Chaos Emerald? He just arrived from Modern Sonic's timeline, yet somehow he had it already.
Headscratchers / Sonic Mania Adventures