Route overview before you start
Use this order for a first completion pass: campfire, stream, beach, forest, soccer field, lodge, lookout, cave, boat, then shop. The order keeps collectibles and interaction checks close together, which matters when the live room is crowded and you cannot see every small shell or prop reaction immediately.
Treat each zone as finished only after three checks: scan the edges, move behind props, and test the obvious activity once. If one object looks suspicious but does not react, mark it mentally and keep moving. The second pass is where you return to uncertain spots with the badge and secret guides open.