UNDERTALE: Undyne the Undying Battle Strategy

Undyne the Undying Walkthrough

Learn Undyne's Attacks and How to Defend

Undyne the Undying's attacks change every turn, but the patterns are predetermined until the 15th turn. Take your time to learn each attack and how to defend against them, as you can anticipate what's coming and how to counter it.

Additionally, Undyne the Undying's attacks are fast-paced and challenging to execute. Even if you know how to defend, it can be difficult to put it into practice. It requires quick reflexes and precise movements, so keep retrying until you get the hang of it.

Arrow Attacks Often Follow Specific Patterns

Undyne the Undying's arrow attacks may seem like they require memorization, but they often follow patterns such as clockwise or counterclockwise rotations. Each turn also has predetermined attacks, so gradually learn the patterns and movements to defend against the attacks.

Use Healing Items With High Recovery Amounts

It's quite challenging to successfully defend against all of Undyne the Undying's attacks every turn. Stock on healing items to use frequently during the battle. The longer the battle drags on, the more disadvantageous it becomes. Therefore, make use of highly effective healing items that can restore your health in a single turn without hesitation.

Genocide Route "Waterfall" Walkthrough

Preparation for the Undyne the Undying Battle

Prepare at Gerson's Shop and the Dimensional Box

Undyne the Undying has high attack power and is vulnerable to getting hit. This is a battle where you gradually wear her down while using recovery items frequently. Make sure to organize and have effective recovery items from Gerson's shop and the dimensional box.

Additionally, Undyne the Undying's attacks are easy to hit consecutively. Increasing the length of your invincibility is the best defense, so purchase and equip Cloudy Glasses from Gerson's shop.

Prepare to Be Defeated Multiple Times

Undyne the Undying is a formidable opponent to defeat on the first try, even with the help of strategy guides. Her attacks are intense, and it's difficult to put into practice just by memorizing defensive techniques. Be prepared to retry multiple times and gradually learn how to handle her attacks.

Undyne's Attack Patterns and How to Defend

	Attack	Attack Pattern	Defense
1		↑×3→, ↓, ←, ↑←, ↓, →↓, ←, ↑	Jump up 3 timesGo up to the right in a clockwise motionGo up to the left in a counterclockwise motionGo up in a clockwise motion
2		←, →, ←×2, →×2, ←, →×2, ←, →, ←, →, ←	Alternate between left and right
3		Random	Block the red arrows
4		Continuous spear attack	Wait a moment and then dodge
5		Thrusting spears	Keep to the center and dodge left and right
6		←, ↑, →, ↓, ←→, ←, ↑, ↓	Go around in a clockwise motionLeft, right, up, down
7		↑×4, ←↑×4, →↑×3, ←↑×3, →, ↑×3	Perform a fast set of Up-Left and Up-Right
8		←, ↑, ←, ↑ ←, ↑, ←, ↑→, ↓, →, ↓ →, ↓	Perform Left-Up 4 times and Right-Down 3 times
9		Spear rotation surround attack	The surround tightens a little, then loosen the rotation and pass through
10		Spear rotation surround attack	The surround tightens a little, then loosen the rotation and pass through
11		←, ↓, →, ↑, ↑ ←, ↓, →, ↑→, ←, ↓	Rotate counterclockwise twiceRight, Left, Down
12		←, →, ↑×2←, →, ↓×2←, →, ↑×2←, →, ↓×2	Perform a set of Left-Right-Up and Left-Right-Down twice
13		←, →↓, ↑→, ←↑, ↓←, →↓, ↑→, ←	If you defend on the left, defend on the right, if you defend on the top, defend on the bottom
14		Random	Defend against the red arrows
15		Simultaneous spear attack	Try not to move too much and escape to the outside

From the 16th Turn Onwards, Undyne the Undying Will Randomly Perform Spear Attacks.

Undyne the Undying will perform predetermined attacks until the 15th turn. From the 16th turn onwards, she will randomly perform spear attacks. Remember these attacks and how to dodge them so that you can handle any attack that comes your way.

The Difficulty of Dodging Attacks Has Increased.

The attacks from the 16th turn onwards have increased difficulty in terms of longer attack duration and faster bullet speed compared to the first attack. If you have cleared an attack once, do not let your guard down and consider healing if necessary while strategizing to overcome it.

Recommended Items for Undyne the Undying Battle

List of Boss Guides
Toriel	Papyrus	Undyne
Mettaton EX	Asgore	Flowey
Asriel	Undyne the Undying	Sans

List of Boss Characters and Order of Battles