UNDERTALE: Ruins Walkthrough: Genocide Route

Conditions for Achieving the G Route in the Ruins

Defeat 20 Monsters Before Reaching Toriel's House

In order to progress through the G Route, you must defeat all the enemies that appear in the Ruins before entering Toriel's house. Once you have defeated them all, the encounter counter will display "But nobody came". Keep defeating them until this message appears.

Dummy and Napstablook Do Not Need to be Defeated

The Ruins monsters Dummy and Napstablook cannot be defeated, so they are excluded from the requirement. Additionally, if you have already defeated 20 enemies, you won't encounter Napstablook in battle. You can still move through the G Route without any issues despite this.

Defeat Toriel

To conquer the Ruins in the G Route, you need to defeat Toriel, the boss of the Ruins. If you meet the conditions for the G Route, you can defeat Toriel in one hit. There is no need to prepare before this boss battle.

Recommended Encounter Locations in the Ruins

Around the First Save Point for About 10 Encounters

It is recommended to aim for this area for encounters after receiving the cell phone from Toriel. As the encounter rate decreases when defeating 10-12 monsters in the same location, move on to the next location.

The Area With Moving Stones for the Remaining Encounters

Once the encounter rate in the first area decreases, move to the area with the puzzle where the stones move. If you experience encounters after achieving the required defeat count for the Genocide Route, it will display "But nobody came." Keep defeating monsters until you reach the required defeat count for the Genocide Route.

Genocide Route Strategy Points in the Ruins

Collect Recovery Items

In the Genocide Route, you will have to fight tough enemies like Undyne the Undying and Sans later on. It is essential to have recovery items with high effectiveness. Items like Spider Cider and Butterscotch Pie are extremely helpful.

Napstablook Battle Walkthrough Chart

Talk to Flowey

As you move along the path, you will start a conversation with Flowey. The battle screen will appear, but not to worry - it's a tutorial. Just follow Flowey's instructions to progress the conversation.

Solve the Cracked Floor Puzzle

For the first puzzle, choose any spot to fall down through the cracked floor to the lower floor, then enter the upper right entrance to clear it. Proceed to the right and take on the next puzzle.

Solving the Stone Puzzle

For the second puzzle, you need to push the rock to the right and move it onto the switch to clear it. The rock can be moved by inputting the right direction on the L stick from the left side of the rock.

Solving the Second Pitfall Puzzle

The third puzzle consists of two layers, upper and lower. To clear it, you need to proceed on the cracked floor (upper floor) without stepping on the maple tree(lower floor). Even if you fall down, you can return by entering the upper left entrance.

Solving the Second Stone Puzzle

For the fourth puzzle, you need to move the three rocks onto the switches to clear it. However, the rock at the bottom is special and requires multiple conversations while moving it.

Defeating Napstablook

Napstablook, the ghost, is not a boss that needs to be defeated even in the Genocide Route. It is troublesome to end the battle with attacks, so choose "Forcefully Spare?" and select "Yes" four times.

No Battles Occur If You Have Defeated 20 Monsters

If you have defeated all the monsters in the Ruins before a battle occurs, Napstablook will disappear. There is no need to worry as the battle will no longer occur. You can proceed through to the Genocide Route without any issues.

Toriel Battle Strategy Chart

Buy Spider Cider

If you go right from the mouse hole where Napstablook was, you can go to a room where you can buy Spider Sweets. Although it's a bit expensive, Spider Cider is a valuable recovery item with a high effect, so make sure to check the spider web and buy it.

Solving the Pitfall (Cracked Floor) Puzzle

In the room with six cracks, falling down from the crack in the middle top and pressing the switch on the floor below will clear the puzzle. Also, falling down from the bottom left will allow you to obtain the equipment item "Faded Ribbon".

Solving the Switch Puzzle

The switch puzzle consists of four areas, and pressing the buttons of the colors written on the signs will clear it. To solve the puzzles in Areas 2 and 4, remember the entrance and button placements in Area 1. Search for the locations of each button from the perspective of the entrances of Areas 2 and 4.

Go Right at the T-shaped Intersection to Obtain the Knife

Upon reaching the T-shaped intersection towards the end of the Ruins, go right. You can obtain the weapon Toy Knife. Equipping it will allow you to defeat enemies more quickly.

Defeat 20 Enemies

If you haven't defeated 20 enemies by the time you reunite with Toriel and reach home, go back to the previous area and repeat encounters. If you see the message "No one came..." during encounters, it means you have achieved the conditions for the Genocide Route.

Encounter Rate Decreases as You Defeat Enemies

In "Undertale," the encounter rate decreases as you defeat enemies in the same area. It may be easy to misunderstand that you have defeated all of them after the 15th enemy or later, but until you see the message "No one came...," you haven't defeated all the enemies. Keep going back and forth until this happens.

Sleep in the Room and Receive Butterscotch Pie

After defeating enemies, go to Toriel's house and sleep in your room's bed to receive the Butterscotch Pie. The Butterscotch Pie is a valuable item that fully restores HP and is useful in battles against Undyne and Sans.

Defeat Toriel

When doing the G Route challenge, after defeating all the monsters, you must also defeat Toriel. Choose "Fight" and attack Toriel to defeat her in one hit. No preparation is necessary. If you also attack without hesitation from the first turn, you can see some special dialogue.

Changes in the G Route in Ruins

Items Obtainable in Ruins

List of Items

Monsters That Appear in Ruins

※ Dummy	Froggit	Whimsun
Moldsmal	Migosp	Loox
Vegetoid	Napstablook	Toriel

※Only at the beginning

Monster List

Genocide Route Strategy Chart
Ruins	Snowdin	Waterfall
Hotland	Core	New Home

Strategy Chart by Route
Neutral Route Strategy	Pacifist Route Strategy	Genocide Route Strategy

Strategy Chart List