more Dungeon Meshi in Wind Waker style! (first part)
I like the idea that Link could stumble on Laios's party in dungeons, maybe after the miniboss, and they offer you a meal that replenishes your health, sort of like Yeto from TP! You could take some with you in a bottle like grandma's soup. There could be a funny interaction if you show Marcille a joy pendant, and she thinks it's really pretty until Laios and Senshi tell her it's actually a treasure bug.
Since the player cannot stand on gas blocks the only LOGICAL way to get on top of this wall is to attach a sticky block to the gas, rewind the gas through time, and ride the block stuck to it up to the top of the wall