Finding all Sun and Moon Medals, as well as other collectibles like Professor Pickle's Research Notes and Chip's food, is essential for 100% completion and unlocking all content. Many are cleverly hidden.
- Explore Off the Beaten Path: Always look for alternative routes, hidden passages, and areas that seem inaccessible. Sonic stages often have high-speed paths that lead to medals, while Werehog stages hide them behind destructible walls or on high ledges.
- Use the Werehog's Abilities: The Werehog's stretchy arms are invaluable for reaching high-up Moon Medals in hub areas and stages. His strength can also break open new paths.
- Check Every Corner in Hubs: In hub areas, look behind buildings, on rooftops, under bridges, and in small alleys. Talk to all NPCs, as some might hint at medal locations.
- Revisit Stages: If you're missing medals, replay stages with a focus on exploration rather than speed. Take your time to scour every area.
- Listen for Clues: Sometimes, the game provides subtle audio cues when a collectible is nearby.
- Chip's Item Finder: As Chip's affection grows, he will occasionally point out hidden items, making your search easier.
A methodical approach to exploration will ensure you don't miss any crucial collectibles. The game's menu often shows how many medals are left in each area.