In Chapter 4 'Cuckoo Clock', during the level section 'Gates of Time' players can find a river boat. If players get in the boat and ride along the track, they will come across a house on a pier. If a player enters this house inside they will find numerous blue pots with white stripes & large crates. The pots can be broken and inside them are green Rupees. This room is a reference to the Guard House of Castle Town from The Legend of Zelda: Ocarina of Time, a location infamously used to easily farm Rupees. An Achievement/Trophy is also unlocked: 'Force Triangulated', with the description, "Breathe some wind into your ocarina, my skyward princess".
Contributed by Yoshispacedragon