Poison Moth's Lair

Head back to Holodrum once you have
the Spirit of Summer. Turn the season
to Summer at the stump just below
Poison Moth's Lair. Before entering,
take this time to plant some Gasha Seeds
and to climb the vines at 9-C. Dig at
that spot to get a Ring. Now once you
are ready, enter Poison Moth's Lair
by climbing the vines.
From the entrance, go up. Use the Shield
to flip the Spiked Beetles then slash them
to kill them. Go up again. Kill the
Moldorms and go right. Kill the Spiked
Beetles again and continue right. There
are Wall Masters in this room, so make
sure to kill them. At the bottom is a
button that opens a door. Push a jar
onto the button to open the door. Go
through it.
Ignore the monsters if you'd like and
head left. Don't press the button but
just head down. Push the rollers and
make your way to the chest containing
a Small Key. A Roc's Ring is good to
have right about now. Push the block in
the corner out of the way and head
up and right. Take the stairs.
Kill the Pol Voices with a jar. Push
the upper block up and continue.
Defeat the Moldroms and open the
chest to recieve 10 Bombs. Bomb the
wall that is behind the pattern of different
floor tiles. Enter that room to recieve
a Dungeon Map. Go back down and
push the block next to the upper block
to continue. Push the 2 blocks next
the the leftmost block to create a path
to the left.
To open this door, you must make the
bottom row of statues look like the top.
To do so, push the middle red statue
down, and the middle gray statue down.
Then push the leftmost red statue to the
right, then the bottom red statue left.
Push both red statues down. Push the
rightmost gray statue left twice, then
down. Push the leftmost gray statue down
to open the door.
Head left 3 scenes and then up. Push
the Hardhat Beetles down the hole and
unlock the door. Kill the Arm-Mimics
to make a chest appear. Open it for the
Roc's Feather. Now you can jump! Go
back down and equip the Roc's Feather.
Jump to the moving platform and down
the enclosed pit. Take the stairs and
make your way to the right, jumping
and climbing ladders.
You should now be here. Jump on the
trampoline and possision yourself to
avoid falling down the hole. Grab the
Compass and jump back down. Push
the trampoline to the other purple square
and jump on that. Head right.
Here you need the Power Bracelet and
the Roc's Feather. Push the rollers
out of the way and jump over the spikes.
Make your way right and take the stairs.
Push the trampoline to the orange square
and jump on it. Grab the Small Key and
jump back down. Take the stairs going
down and make your way to the left
and up the ladder.
Hop on the ride and jump across the
pit. Go right and you will be back to the
room with the Wallmasters and the jars.
Open the door like last time and head
down. Kill the enemies and head left.
This time, jump over the button. You
can go up the stairs and make your way
around to a Gasha Seed, or open the
door.
Behind the door is Calamareye. This
boss is not too tough. Equip your Power
Bracelet and pick up the Calamareye
that come up. Throw it onto dry land
and start slashing it. 4 Slashes kill 1.
Repeat 2 more times and watch out for
their fireballs. Once they are dead, go
up the stairs.
Make your way around to the pit. Hop
down it and watch out for the big spike.
Push the 4th block down into the pit
and grab the Big Key. Push the lower
block out of the way and jump down.
Go right and down. Take the warp back
to the Calamareye Room and take the
stairs back up. Take the first jumping
path and unlock the boss door.
You will now be facing Mothula. Not
too tough of a fight. Once you enter,
immediately jump to a middle platform
and rapidly slash away at it. When the
baby moths are killed, jump to the outter
part and wait for Mothula to fly close to
you. When it is near, unleash a spin
attack on it. Take the hits as they come.
When it slows down, hop to the middle
again and attack it. When it is defeated,
grab the heart and go down the stairs.
If you fell down at any time during the
fight, jump back up on the trampoline.
Go through the door and pick up the
Bright Sun. You will exit the dungeon.
Listen to the words of the Maku Tree
as me mentions the Sunken City.