Golden Sun: The Lost Age Tips

An extra darkmatter
On an island in the western sea there is a turtle that is lonely if you do all the work and find its friend it will take you to its secret cave. This cave is useless to you until you have teleport. Once you have teleport stand on the teleport square. it will take you to a very, very long corridor at the end of this corridor there is a sentinal which when defeated will give you a strong combo summon called catostrophe anyways on your way up the corridor you will have to fight many battles at one of these battles the monsters called Wonder Birds can drop a darkmatter i was able to get the darksword and the shield that darkmatter can give you. i dont know if it will always work though.