1) Check Kenneth and go back to main hall.
2) Go
for the golden arrow at the location below. Examine it to get an
arrowhead. Proceed to backyard and enter the tomb. Pick up the book from
the stand and inspect it to get a key.

3) Pick
up the old key from the bahtub, then use it to open the outside boiler
door and pick up herbicide/plant chemical. On your way to the next
location, pick up the old key from next to the typewriter.
4) Pick up dog whistle. Use the dog whistle on the balcony to get a collar. Inspect the collar to get an imitation key.
5) Pick up the real armor key and put the imitation key in its place.
6) Use herbicide and obtain the first mask.
(Red) Pick up the old key from basement (on the shelf in the corner.)
7) Statue
room puzzle and mask #2. Then trigger Richard's time and bring him the
serum (or don't? your choice. You can't make V-JOLT later if you save
him.) After dealing with Richard take the first musical score.
Statue room puzzle:
Top right
Bottom left
Bottom right.
Press the two sun pieces on the box.
8) Pick
up the fake emblem from the dining hall (above the fireplace), go to
the bar/piano room to obtain the other half of the musical score and
combine both scores. Try to play the piano and Rebecca will come to
help. Go to main hall and come back to take the golden emblem from the
hidden room (Put the fake emblem in its place to get out). Go back to
the dining hall to put the golden emblem in the original emblem spot
above fireplace. This is going to make the clock puzzle available.
You'll obtain the key that opens Yawn battle room after solving clock
puzzle.
(Large-Right x2)
9) First yawn battle, pick up the mask#3 from the corner of the room
10) Gallery puzzle,
obtain mask #4. Then put all of the masks in place for crimson
prototype fight. When you are done with the crimson prototype you'll
find a stone and metal object inside of the coffin. This is the key to
enter the courtyard.
11) After a smol puzzle
(Red -> W, Blue-> N)
to open the gates, proceed to the cabin to get the crank. When you try
to leave you'll have the first Lisa encounter. When you are out of the
cabin, backtrack to the beginning and go for the pool. Use the crank,
proceed through the pool and take the elevator. Follow the path to enter
the residence.
12)
Go to the billard room, pick up the book from downstairs and light the
lamps(candles? not sure.) Make a mental note or screenshot of those with
the billard balls for future use so you won't have to come back here.
13)
Obtain room 001 key from the bathroom shelf. Go to room 001 and pick up
the control room key. Go back to room 002 and push the bookshelves to
get to the ladder. Climb down.
14) Run around the sharks, go downstairs and do the
control room puzzle. Then pick up gallery key. Then go back upstairs to the residence.
15)
Enter the gallery, pick up the pesticide spray from the corpse. Use the
spray on the bee nest. Go back to where the nest was and pick up room
003 key. Get in the room and reorder the red books. It will open a door
to Plant 42 fight. If you didn't save Richard, when you enter the door
you'll switch to Rebecca to make V-JOLT. If you saved Richard just skip
the next 2 steps and don't forget to pick up the key from the fireplace
after Plant 42 fight.
16) Use the code from the billard room we checked earlier (lamps and billard balls) to open the medical room and make V-JOLT.
V-JOLT Recipe:
UMB No.3 + Water = NP-004
NP-004 + Yellow-6 = UMB No.10
Yellow-6 + Water = UMB No.7
UMB No.10 + UMB No.7 = VP-017
VP-017 + UMB No.3 = V-JOLT.
17) Make your way to the aqua ring again and use V-JOLT on the Plant 42 roots.
18)
Backtrack aaaaall the way to the mansion again. Make your way to
another statue room, solve the puzzle to reveal a hidden passage below.
Before you descend further you'll find a book with a medal inside.
19) Fix the power supply, get in the elevator.
20) Pick
up the battery. Pick up the red and yellow gemstones from the hawk
room. Yellow is only needed for the first M.O disk. If you aren't
planning to save Jill later you can skip this and just pick up red
gemstone.
21) We can now kill Yawn, after defeating him pick up the book and inside of it you'll find another medal.
22) You can get the M.O disk now if you'd like to save Jill later.
Pick
up jewelry box and use the red gemstone to open it. Examine the broach,
it's going to transform into a key. Then you can enter the study room
to pick up a metal object.

When you enter the room you'll hear Rebecca scream. If you'd like to save her she's upstairs. After that go back to courtyard.
23) Take
the elevator to the fountain area, use the battery pack on the broken
elevator and go back to the pool. Use the crank on the pool. Then take
the fixed elevator back to the fountain/waterfall area and go down from
the ladder.
24)
Pick up the hexagonal crank from Enrico's body. Either defeat Black
Tiger or pass through the room. You need to use the survival knife to
clear up the door and go through. Pick up and move the flamethrower on
the ledge to unlock the door. Solve the puzzle to get cylinder and go
all the way back to the elevator. Pick up the shaft, combine with the
cylinder and put it back (order of buttons are on the shaft) then take
the elevator.
25) Push
the box in the room to the device and move it downstairs. Then go back
to the elevator room, take the ladder downstairs and use the garbage
compactor to break the box. Pick up the broken flamethrower. Pull the
lever in the hallway that Lisa is wandering around, use the broken
flamethrower on the device next to the locked door to unlock it and
enter. Pick up the jewelry box and use the ladders to climp up. Inside
of the jewelry box you'll find a stone ring. You can now combine stone
ring and metal object.
26) Go back to the mansion. You can enter the altar now.