Note: you can keep track of where you are along the train car by counting the seats in front of you.

Let's start on the left side. The seat immediately in front of you has a four-color box, and a metal part on the left window catches your eye.

On the seat in front of that, the safe has four buttons with shapes on them.

Before you move on, notice the ceiling panel which is out of reach.

For the next seat, you can only look at the left half. What's that about?

For the next seat, you can't even examine the seat, only the side of it! There are two colored round indentations and a button above a slot. You can also examine the poster above the seat which seeks participants in a sports meet with nine activities.

The door at the end of the train is locked, and you can look at the clock above it. Wow, it's late.

On to the right side! The seat to the right of the door has a locked compartment above it.

The next two seats seem to have nothing interesting near it.

So back out to the starting view. The seat on the right has a four-digit box on it, but more interesting is the tiny rail track on the floor that passes into the side of the seat, with an equally small metal box on the wall next to it.

Flip the switch you found on the left side, and nothing appears to happen.

But now you can open the seat up to find some (replicas of) sports equipment.

Use the clue from the sports equipment to unlock the four-color box.

The items match those on the poster in the icons for baseball, weightlifting, high jump, curling.

The corresponding icons are green, blue, red, yellow, so click the buttons on the box 1, 3, 2, 4 times, then open it to find a spanner.

Use the spanner to remove the metal stick in the last seat.

Then use the stick to open the ceiling panel. Now you can just reach your arm up to take the blue ball that was in it.

Use the clue from the clock to unlock the four-digit box.

The time is 9:25, but since you know it's nighttime, it would be 21:25 in the 24-hour format.

So enter 2125 in the box, and open it to find a red ball.

Place both balls in the indentations on the last left seat, and push the button to receive a hammer.

Use the hammer to smash the rock on the first seat, and pick up the red key from it.

Use the red key to unlock the compartment at the end of the train, then pick up the toy train from it.

Use the clue from the toy train to unlock the four-shape box.

The shapes on the top of the toy train are diamond, circle, triangle, star.

So click the buttons 5, 3, 2, 4 times, then open the box to find a red GO button.

Zoom in on the tiny track. After you place the train down, you can open the box and place the button.

You can also push the button to send the train moving, and it comes out the other side unchanged.

Instead, attach the metal part to the front of the train before you place it on the track.

When the train emerges, it pushes a blue key out!

So use that key to unlock the door and leave.

After the previous games, you know that the forces of darkness are best countered with the help of these purple orbs trapped in a sacred jar. So let's skip the whole part where you bump into walls, and go directly to it. For traveling between screens, I'll refer to directions as they would appear on a compass, with north being up.

The room you start in is filled with darkness, and the exit door behind you has been magically sealed. Thankfully, you can just click the up arrow to move north to a corridor with four possible paths.

Now move east, north, and north up the stairs, and north again. There's the jar resting on the wheelchair! You can now pick up 4 orbs by moving your mouse over them. Notice the crack in the wall on the left.

As before, orbs that I've found on each screen will be indicated in parentheses.

The door to the east is locked and has a silver keyhole.

Go south (3), and pick up the hammer from the window.

Take a detour to the east (4), where you find an unlit candle and some shapes on the wall that look like a sixteen-segment LCD display.

Then go west and south (4). Notice that the colored globes beside the stairs light up when you click them.

Go south (3) again. The east door has a green keyhole.

Go west (4), then north (4). The north door has a gold keyhole.

Then go west (4). We've arrived with a total of 30 orbs! Click on the hooded figure to open up the orb shop, and buy the map on the left for 10 orbs and the crystal ball on the right for 20 orbs.

Now you can open the map and takes notes in it, and the crystal ball lets you teleport anywhere you've previously visited just by clicking that spot on the map.

Teleport back to F, and then go west to E(3). There's another display on the left window, a weird machine with a scale and a wall panel that's screwed shut.

Go west to D(3), where a wall panel has three lights and buttons shaped like the displays you've seen. The west door has a purple keyhole.

Go north to K(3), and pick up the old book on the ground. It has a four-letter lock on it. The north door has a blue keyhole.

Go west to J(4). Examine the bear closely, then rip out its remaining eye to find a purple key.

Bring the purple key to D and use it to open the west door.

At C(2) you find a chest with a lock on it, with a grid of flowery arrow shapes in colored circles.

Go west once more to B(0). That's right, there are no orbs here. Instead, there are some large pots which are empty except for the second one, which has a reddish blob with a green key in.

Bring the green key to G and use it to open the east door.

Of course there's a church at H(3). Darkness seems to emanate from the purple eye floating near the ceiling.

Go east to I(3), where you can remove the poster from the wall to reveal a hidden compartment with a blue key.

Bring the blue key to K and use it to open the north door.

An evil spirit floats around at P(3).

Move north to U(1), where you can dig around in the sink to find a screwdriver.

Go south and west to O(3), where you find a whole bunch of empty lockers and cupboards. But are they really all empty?

Bring the silver key to W, and use it to open the east door.

At X(4), you find another one of those displays on the wall. Looking in the switchbox next to it, you find a lighter.

Use the screwdriver to remove the panel at E and find lighter fluid.

Fill the lighter with the lighter fluid, then bring it to T and light the candle to reveal the gold key next to it.

Bring the gold key to M, and use it to open the north door.

At R(4), you find a glowing pair of green-lensed glasses on the table.

Go north to V(3), and click the drawers between the beds to find a flashlight in them.

Go south and west to Q(3), which is way too dark to see anything.

Place the batteries in the flashlight, and use it to light up the room at Q.

There's nothing else of interest there except for a red gem.

Go back to the orb shop at L, and buy up the sacred dagger and light bow and arrow.

Use the dagger to defeat the spirit at P to get a red gem, and the bow and arrow to defeat the eye at H, which also drops a red gem.

Use the glasses on each of the displays at E, T, and X, which makes some symbols appear in green.

Then use that clue to unlock the device at D.

You can input the symbols in any order. Click the switch after each one to light up the corresponding lamp.

I (at E): Connect the horizontal lines across the top and bottom, and the vertical line across the middle.
II (at T): Connect the two diagonal lines through the middle, then the vertical line segments forming the bottom half of the left side and the top half of the right side.
III (at X): Connect the vertical line across the middle and the diagonal line from bottom left to top right, then the half-length line segments in the horizontal directions meeting the top-left and bottom-right corners.

After all three codes are input correctly, the device opens up so you can take a red gem.

Use the clue from the scale at E to unlock the book.

The text painted on the front reads PAIN backwards.

So enter PAIN in the book, and click the clasp to unlock it. As you flip the pages, you find a "normal" diary entry followed by a grid of colored circles, then several short pages of nonsense words, and at the end there's a red gem.

Use a clue from the book to activate the globes beside the stairs at N.

The sequence of words in the book has the initials B B B B R R B.

So click the Blue (left) and Red (right) globes in that order, and a red gem appears beside the red globe.

Use the hammer on the cracked wall at W to get the last red gem.

Collecting all 7 gems from D, H, N, P, Q, W and the book has caused hexagonal receptacles to appear on some of the walls. Seek them out!

Or you could just read the next spoiler.

The gem slots appear at C, F, I, M, T, U, V.

So place the 7 gems there.

Returning back to A, you find that the exit is now unlocked and you can end the game. But where's your girlfriend?

Use the glasses on the second page of the book to reveal an arrow passing through the circles.

Then use that clue to unlock the chest at C.

Notice that while the pattern of colors on the buttons is rotated 90° clockwise from that on the book.

So the arrow needs to pass through the buttons on the chest in the order
4 2 1
3 5 8
6 7 9,
going towards the lower left after 9.

Which means that the arrows on the chest need to point in the
↘ ↙ ←
↑ ↙ ↓
→ ↗ ↙ directions.

Set them accordingly, and you get a magic wand.

Use the magic wand to clear out the darkness at A.

You find your phone, which has a message from your girlfriend saying she wasn't coming.

Now you can leave with some peace of mind!

You start off facing an empty table. On the wall behind, there are two doors you can't open: the left has its handle tied with a rope wedged in the frame, and the right has its access keypad shut off by a plastic panel secured with screws. The cafe's counter is on the right, decorated with four simple pictures on the wall above, and you can pick up the menu from the counter to find a password card inside. The door on the right wall is blocked off by a giant plant pot whose lock has four picture buttons.

Turn left to find two double doors with a row of six lights above the two arrow buttons on its lock, and a long table facing the window which has a small box with two drawers and square compartments on top.

Turn left. The table here has a cup of matcha and a green heart chocolate laid out.

Turn left. The table here has a plastic card with a picture of dango on a skewer. There's also another table on the left with some greenish plant arrangements, and you can click the middle one to lift it and find a chidori (plover) charm strap.

Use the clue from the hanging pictures to solve the lock on the pot.

The green dot above the left button matches the color on the right picture.

So you need to input the pictures from right to left: gourd, fish, mountain, cat.

Click the buttons 1, 6, 4, 5 times and then push OK. The pot sprouts wheels and now you can push it aside to access the door to the next room.

The two doors in front of you open into two toilets.

The left one has a clue with dice above the toilet bowl, and a gourd charm strap beside.

The right one has a clue with fish above the toilet bowl, and a key handle beside.

Use the clues in the toilets to unlock the double doors.

The fish in the positions marked by the dice face the left, right, left, left, left, right directions.

So push the LRLLLR buttons on the doors to unlock them.

You enter a room with two locked doors at the front and left, and find a key tip in the left corner.

Attach the handle to the key tip, and use the assembled key to unlock the sliding doors.

It's a sweet shop! You can browse the displays on the left which contain confectionery at different prices and a box of different-shaped matcha chocolates. Looking in the wooden box on the right display, you find a triangle chocolate. At the back, Ms Frog sits in front of a tiny dessert spoon, and is surrounded by more boxes of confectionery. On the right wall, a box has four slots with skewers in them, and the downward arrow buttons above and below the skewers add and remove different-colored balls to them.

Use the clue from the picture of dango to unlock the skewer box.

The green, brown, pink, white balls are in the 1st, 3rd, 4th, 2nd positions from the base of the skewer.

So click the top buttons to place that many balls on the skewers (from left to right), then push the OK button, which pops open to reveal a star chocolate.

Use the clue from the chocolate box to unlock the box with two drawers.

Ignoring the square chocolates, the box on display holds triangle, star and heart chocolates, but they seem to be sideways.

So rotate the whole clue to make the triangle face up, and you find that the heart goes in the top middle square, the triangle in the bottom-left and the star in the middle.

So place the chocolates from your inventory accordingly, and push the OK button to unlock both drawers. You find a screwdriver in the top one and a maple charm strap in the bottom one.

Use the screwdriver to remove the cover on the keypad.

Use the clue from your password card to unlock the door with the keypad.

The items on the card have prices of 540, 130, 460, 788 yen.

The colored circles beneath the pictures tell you to take the 2nd, 1st, 2nd, 3rd digits from the prices.

Those digits are 4, 1, 6, 8, so enter 4168 to unlock the door.

The kitchen shelves are uninteresting except for a pair of scissors on the left shelf. Beneath that, there's a tray with clamps and a bowl and instructions for serving. On the right side of the wall, a box with a frog picture has square buttons that get increasingly subdivided when clicked. The cupboard beneath that is locked and has a card slot.

Use the scissors to cut the rope holding the other door shut.

You can now access the small garden with a butterfly charm strap on the nearest bamboo stem.

Use the clue from the Ms Frog display to unlock the box with square buttons.

The boxes on the top row above Ms Frog have 5, 2, 4 packages of sweets, and those on the bottom row have 3 and 6.

So click the buttons until they match, and then the OK button. The box dispenses a keycard.

So use that card to open the cupboard and find a neatly wrapped package.

Unwrap that package to find two smaller dessert containers.

Use the dessert on the tray, and then the spoon.

Now you can pick up the small tray of dessert.

Set the tray down in front of Ms Frog, who gives you the sakura charm strap.

All five charm straps combine to form the door key, which you can use to unlock the remaining double doors and escape!