Hey, TimeBlog. I'm having the same problems that a lot of other users are saying they are. I can't seem to find all of the seed pieces. I went through each and every point on the walkthrough, excluding Lacste, which is blocked off. Are you sure you need to collect both treasures in Lacste to complete the dungeon?
Yeah, there are two. One is in the first level, and there's no way around it--it's in the middle of the only path to the next room. Second, there's one in front of the burnable tree that leads to a switch. You also can't beat the dungeon without touching that switch, and the chest is right in the way.
 "Seedling"){kind=icon}
 "Take Your Canvas Bags To The Supermarket."){kind=icon}
 "my game (work in progress)"){kind=icon}
 "Kongai Launch"){kind=icon}
 "Rage 2"){kind=icon}
 "Draw-Play 2"){kind=icon}
Yeah, there are two. One is in the first level, and there's no way around it--it's in the middle of the only path to the next room. Second, there's one in front of the burnable tree that leads to a switch. You also can't beat the dungeon without touching that switch, and the chest is right in the way.