Quick Guide

1 Chase Numemon around the factory.
2 Fight HiAndromon in the Operation Room.
3 Fight WaruMonzaemon in the factory’s sewers.
4 Fight the A.o.A Attacker in the Secret Room.

Chasing Numemon (Step-by-Step):

As soon as you enter Dum Dum Factory, you will run into Numemon again.

Talking to Numemon inside the factory. / Digimon World 3
Talking to Numemon inside the factory.

In this puzzle, you will chase Numemon around the factory. Here’s exactly where to go:

Step 1: From the entrance, walk up. Head past the first intersection, then turn left at the second intersection.

Heading up and turning left at the second intersection. / Digimon World 3
Heading up and turning left at the second intersection.

Step 2: The game will proceed automatically here. You will return to the second intersection and watch Numemon enter a room.

Watching Numemon enter the first duct room. / Digimon World 3
Watching Numemon enter the first duct room.

Step 3: Head left, then turn up at the intersection. Continue forward and then climb down the ladder to access Duct Room 01.

You won’t find Numemon inside the room, but an item box instead. Open the box to obtain an HP Chip.

Heading up at the intersection, then climbing down the ladder to Duct Room 01. / Digimon World 3
Heading up at the intersection, then climbing down the ladder to Duct Room 01.

Step 4: Exit Duct Room 01, then climb up the ladder.

Head left and go down the intersection here.

Climbing up the ladder, then turning left at the second intersection. / Digimon World 3
Climbing up the ladder, then turning left at the second intersection.

Step 5: Keep going left, then turn up at the first intersection. Continue up, then turn left at the second intersection.

Turning up at the first intersection, then left at the second one. / Digimon World 3
Turning up at the first intersection, then left at the second one.

Step 6: Keep going left until you get to the end of the platform. The game will proceed automatically, and you will run into Numemon again.

Follow after it and enter Duct Room 04. Once again, you will only find an item box inside. Open it to obtain a Mind Chip, then exit the room.

Running into Numemon outside Duct Room 04. / Digimon World 3
Running into Numemon outside Duct Room 04.

Step 7: Return to the ladder just outside Duct Room 01. Head right past the ladder, then turn up at the intersection.

Returning to the ladder outside Duct Room 01, then turning up at the intersection. / Digimon World 3
Returning to the ladder outside Duct Room 01, then turning up at the intersection.

Step 8: Continue heading up until you get to the next intersection. Again, the game will proceed automatically, and you will see Numemon enter a different room.

Watching Numemon enter another duct room. / Digimon World 3
Watching Numemon enter another duct room.

Step 9: Return to the ladder outside Duct Room 01. This time, head left past the ladder, then turn up. Keep heading up past the intersection.

Returning to the ladder outside Duct Room 01, then turning up at the intersection. / Digimon World 3
Returning to the ladder outside Duct Room 01, then turning up at the intersection.

Step 10: Continue up, then turn right at the second intersection and climb down the ladder to access Duct Room 02.

Inside the room, you will find an item box with an MP Chip.

Turning left at the intersection and climbing down the ladder to Duct Room 02. / Digimon World 3
Turning left at the intersection and climbing down the ladder to Duct Room 02.

Step 11: Exit Duct Room 02. Climb up the ladder and then take your first turn here. Continue to the striped floor.

Climbing up the ladder and continuing to the striped floor. / Digimon World 3
Climbing up the ladder and continuing to the striped floor.

Step 12: Once you step on the striped floor, you will see Numemon again.

Watching Numemon enter another duct room. / Digimon World 3
Watching Numemon enter another duct room.

Step 13: From the striped floor, walk down and then turn left at the intersection towards his position. Keep going left, then turn up at the second intersection to access Duct Room 03.

Repeat the usual drill and open the item box inside the room to obtain a Power Chip.

Heading down from the striped floor, then turning left at the intersection. / Digimon World 3
Heading down from the striped floor, then turning left at the intersection.

Step 14: Exit Duct Room 03, then head down. Continue down past the intersection, then turn left at the second one and continue left.

Heading down past the first intersection, then turning left at the second one. / Digimon World 3
Heading down past the first intersection, then turning left at the second one.

Step 15: Once you get to the end of the platform, you will see Numemon entering yet another room.

Watching Numemon enter the room atop the stairs. / Digimon World 3
Watching Numemon enter the room atop the stairs.

Step 16: Head right from your current spot, then turn up at the intersection. Continue forward and then turn right at the second intersection.

Turning up at the first intersection, then right at the second one. / Digimon World 3
Turning up at the first intersection, then right at the second one.

Step 17: Continue going right, then turn up at the intersection to get to the striped floor again. Walk up the stairs to enter the Operation Room.

Walking to the stairs leading to the Operation Room. / Digimon World 3
Walking to the stairs leading to the Operation Room.

Operation Room

Inside the Operation Room, climb the stairs nearby.

Walking left from the Operation Room's entrance and walking up the stairs. / Digimon World 3
Walking left from the Operation Room’s entrance and walking up the stairs.

Continue until you get to the end of the path, then turn up and walk up the stairs.

Walking left and continuing to the stairs. / Digimon World 3
Walking left and continuing to the stairs.

Once you get to the top of the stairs, you will find HiAndromon in front of the monitors. Heal your party before proceeding, then talk to HiAndromon.

After you ask it about Numemon, HiAndromon will challenge you to a fight.

Talking to HiAndromon in the Operation Room. / Digimon World 3
Talking to HiAndromon in the Operation Room.

HiAndromon Boss Fight

HiAndromon Details
Elemental Weakness Thunder, Water
Neutral Damage Darkness, Fire, Wind
Elemental Resistance Ice, Machine

HiAndromon is a glass cannon. While its attacks will hit quite hard, dealing between 400 and 600 damage.

Watch out for HiAndromon’s signature technique, Atomic Ray, which has a small chance of instantly KO’ing your Digimon.

As long as you exploit its weaknesses, HiAndromon will go down in two or three hits. If you struggle to defeat HiAndromon, try raising your Rookie Digimon up to level 23.

After you defeat it, HiAndromon will unlock the door to the sewers, and will also tell you Numemon’s location. You will also obtain a Rusty Rifle, which is part of the Legendary Weapons sidequest.

Learning about Numemon's whereabouts from HiAndromon. / Digimon World 3
Learning about Numemon’s whereabouts from HiAndromon.

You will automatically exit the Operation Room after the dialogue.

From the Operation Room exit, climb down the two ladders, turn left, then climb down the third ladder. Continue to the door to access the Secret Stairs.

Climbing down the ladders leading to the Secret Stairs. / Digimon World 3
Climbing down the ladders leading to the Secret Stairs.

Secret Stairs

Walk down the first two stairs, then turn left. Continue going down the stairs here to access the factory’s sewers.

Walking down the stairs to the sewers. / Digimon World 3
Walking down the stairs to the sewers.

Inside the Sewers

Tip: The Numemon and Sukamon in the sewers are excellent for grinding, and will reward you with over 120 EXP each.

In the sewers, walk forward from the entrance and turn left.

Crossing the metal pallett and then turning left. / Digimon World 3
Crossing the metal pallett and then turning left.

Keep going left until you get to the metal platform. Once you step on the platform turn up and continue along the linear path.

Walking up, then turning left on the platform. / Digimon World 3
Walking up, then turning left on the platform.

Keep following the linear path until you get to the ladder.

Walking on the platform and to the ladder. / Digimon World 3
Walking on the platform and to the ladder.

Climb up the ladder, then turn right. Continue going right until the end of the path.

Note: Make sure to top up your party’s HP before proceeding. You will face back-to-back boss fights, with no time to heal in-between.
Walking to the end of the path. / Digimon World 3
Walking to the end of the path.

The game will proceed automatically from this point. This part is quite long, so make sure you have enough time to play through everything.

You will see a WaruMonzaemon threatening Lisa. Naturally, you will step in to help her, and challenge the Digimon to a fight.

Lisa being threatened by a WaruMonzaemon. / Digimon World 3
Lisa being threatened by a WaruMonzaemon.

WaruMonzaemon Boss Fight

WaruMonzaemon Details
Elemental Weakness None
Neutral Damage Fire, Machine, Thunder, Water, Wind
Elemental Resistance Darkness, Ice

WaruMonzaemon is probably the toughest boss you’ve faced up to this point in the game.

Aside from having no elemental weaknesses, WaruMonzaemon hits like a truck. Its attacks will deal between 800 and 1,200 damage, but can go up to 1,800 with a critical.

To make matters worse, WaruMonzaemon is also extremely fast, and will often get two turns in a row. Be prepared to burn through your healing items, including a Life Disk or two to get your KO’ed Digimon back up.

The Counter Crest comes up huge in this fight.

A single activation will likely be enough to one-shot WaruMonzaemon. However, because of its high Speed stat, WaruMonzaemon has a chance of evading your counters.

Occasionally, the boss will give you some time to breathe by casting its signature technique, Heartbreak Attack. This tech will only deal about 200 damage, although it will also lower your Digimon’s Strength. For this reason, relying on a magic user is the better strategy for this fight.

If you struggle to beat WaruMonzaemon, which is perfectly normal, try getting your party up to level 25 in the sewers. And if you do not have a Counter Crest yet, consider returning to Bullet Valley to obtain one.

After You Win

After the fight, Numemon will show up and remove the disguise to reveal his identity – none other than Lucky Mouse himself.

Numemon reveals his identity. / Digimon World 3
Numemon reveals his identity.

Lucky Mouse will then take you and Lisa to his Secret Room, and will then reveal the truth behind Digimon Online and the A.o.A’s plan.

Halfway through, you three will be interrupted by A.o.A members, who will show up holding Kail hostage.

Read through the dialogue and you will learn that Lucky Mouse is actually Kail’s older brother, Kurt.

Following a long exchange, Kurt will return a Digitama to the A.o.A in exchange for Kail’s safety. However, before the A.o.A members leave, one of them will try to shoot Kail. Kurt will jump in front, and will get turned into an Oinkmon.

The attacker’s gun will fail after that, giving you an opening to step in and challenge him to a fight.

Challenging the A.o.A Attacker to a fight. / Digimon World 3
Challenging the A.o.A Attacker to a fight.

A.o.A Attacker Boss Fight

A.o.A Attacker Details
Digimon Elemental Weaknesses Neutral Damage Elemental Resistances
Monzaemon Fire Darkness, Machine, Thunder, Water, Wind Ice
Nanimon None Darkness, Fire, Ice, Machine, Thunder, Water, Wind None

Monzaemon is much weaker than its side form. Its attacks will only deal between 200 and 400 damage.

Monzaemon’s signature technique, Heart Attack, will lower your Digimon’s Strength, but will not deal any damage. Once again, a magic user will likely have an easier time in this fight.

Just like its side form, however, Monzaemon is also quite fast. It will occasionally get to move twice in a turn, and will evade a few attacks.

Nanimon, in a vacuum, probably wouldn’t pose much of a problem. However with your party likely running on fumes after the WaruMonzaemon fight, Nanimon will be extremely annoying to deal with.

Aside from not having any weaknesses, Nanimon boasts an incredibly high Speed stat, despite being only a Champion-level Digimon. More often than not, it will get two moves in a row. Its high Speed will also make Nanimon evade your attacks quite often.

Keep your Digimon’s HP topped up to avoid surprise KO’s from critical hits. Getting a single Counter Crest activation will cause a huge momentum swing, and will give you an opening to quickly finish the fight off.

After driving the A.o.A Attacker away, you will decide to confront the Game Master about her plans.

Back to: Digimon World 3 Walkthrough