Thanks very much, glad you're enjoying it :) Right well try dropping the moss where you find more moss. The Grubs love the stuff. You'll need that cage too. You will need them to get one of the Treasures. The hot air vents are just location detail, they don't do anything. You need to free the spear. Hammer and Chisel are good for breaking chain links ;) The Ruby is unreachable at the ruined bridge. You may have to lose it in order to get it. Try throwing something at it. The pothole can't be made bigger. Try CRAWLing through it.