What to do first
Clean all the leaves! co-op guide: servers cap at 12 players (official Roblox API) and the community walkthrough confirms the Secret Ending is reachable in co-op — in fact easier, because players split areas and clean simultaneously. The method that works: name visible landmarks, assign one patch per player, use short callouts (cleared / edge found / access opened / help needed), keep one money-runner on Trash Can duty, and regroup whenever the map opens new ground. The developer publishes no shared-progress formula, so compare the game's own area percentages instead of assuming credit splits.