Undyne/In Battle

In Battle
She is a weapon-based opponent, mainly dealing with spears in combat. When mortally wounded by the player, Undyne manages to hang on through Determination, but eventually melts. (In a Genocide run, the lethal wound is received before the battle even begins.) This is consistent with Alphys' experiments in injecting Determination into monsters, although Undyne is the only known case of a monster with innate Determination.

Neutral / True Pacifist Route
She throws arrows from all sides at the player in Green Mode, including specifically slow and fast moving arrows, as well as arrows that flip the orientation that they are approaching from. She also launches spears in straight lines at the player in Red Mode.

To spare Undyne, flee from her while in Red Mode (it is not possible to escape in Green Mode) and run through the cave she was guarding. She'll chase you down and moves very fast, requiring two more volleys to escape from, each one harder than the last.

Fleeing from her makes the battle significantly easier than trying to weather all of her volleys in one go, as she progressively increases her projectile speed over the course of the battle, but every time you flee, the speed resets. After you complete 3 green phases, she will begin each new battle in Red Mode allowing you to immediately escape. You can also escape back the way you came from, although it takes 2 battles to do so. Doing this will allow you to heal using a save point before doing her 3rd volley.

If you don't escape while Red, she can restrict the Bullet Board to a very small box which launches spears upwards toward the player in three columns, and she also throws a volley of continuous spears at the player on a larger Board.

Genocide Route
In Red mode, she can throw rings of spears which enclose on the player while rotating, which is exclusive to the Genocide route. In Green Mode, she can conduct the same battle method as in the Neutral or True Pacifist route, only faster paced.

Quotes

 * En guarde!
 * As long as you're GREEN you CAN'T ESCAPE ! Unless you learn to face danger head-on ... You won't last a SECOND against ME!
 * Not bad! Then how about THIS!?
 * For years, we've dreamed of a happy ending...
 * And now, sunlight is just within our reach!
 * I won't let you snatch it away from us!
 * NGAHHH! Enough warming up!
 * Mercy! Ha! I still can't believe YOU want to spare ME! [Spare after Undyne reenables red mode]]
 * But even if I spared YOU...
 * No human has EVER made it past ASGORE !
 * Honestly, killing you now is an act of mercy...!
 * So STOP being so damn resilient!
 * What the hell are humans made out of!?
 * Anyone else would be DEAD by now!
 * Alphys told me humans were determined...
 * I see now what she meant by that!
 * But I'm determined, too!
 * Determined to end this RIGHT NOW!
 * ... RIGHT NOW!
 * ... RIGHT... ... ... NOW!!
 * Ha... Ha...
 * NGAHHH!!! DIE ALREADY, YOU LITTLE BRAT!
 * I WILL NEVER TAKE MERCY FROM THE LIKES OF YOU!
 * YOU! WILL! NEVER! SPARE! ME!
 * YOU'RE GETTING IN MY WAY! [Undyne's HP is low]
 * I WILL NOT BE DEFEATED! [Undyne's HP is low]
 * Come on, is that all you've got!? [After Undyne's health reaches 0]
 * ... pathetic. [After Undyne's health reaches 0]
 * You're going to have to try harder than that! [After Undyne's health reaches 0]
 * S-see how strong we are when we believe in ourselves? [After Undyne's health reaches 0]
 * H...heh... [After Undyne's health reaches 0]
 * Had enough yet? [After Undyne's health reaches 0]
 * ...I won't... ...Give up... [After Undyne's health reaches 0]
 * Ha... ha...
 * ...Alphys...Undying21.png
 * This is what I was afraid of...
 * This is why I never told you...
 * No... No!
 * Not yet!
 * I won't die!
 * NGAHHHHHHHH!!
 * I WON'T DIE!
 * COME BACK HERE, YOU LITTLE PUNK!! [Undyne catching up to you first time]
 * STOP RUNNING AWAY!!! [Second time and up]
 * COME BACK HERE, YOU LITTLE PUNK!! [Undyne catching up to you first time]
 * STOP RUNNING AWAY!!! [Second time and up]

Flavor Text

 * The heroine that NEVER gives up. [Check]
 * Undyne attacks! [Encounter]
 * Undyne flips her spear impatiently. [Neutral]
 * Undyne points heroically towards the sky. [Neutral]
 * Undyne flashes a menacing smile. [Neutral]
 * Undyne draws her finger across her neck. [Neutral]
 * Undyne bounces impatiently. [Neutral]
 * Undyne suplexes a large boulder, just because she can. [Neutral]
 * Undyne thinks of her friends and pounds the ground with her fists. [Neutral]
 * Smells like sushi. [Neutral]
 * Undyne is hyperventilating. [Neutral, late in the fight]
 * Undyne is smashing spears on the ground. [Neutral, late in the fight]
 * Undyne towers threateningly. [Neutral, late in the fight]
 * Undyne holds her fist in front of her and shakes her hand. [Neutral, late in the fight]
 * Undyne's eyes dart around to see if this is a prank. [Neutral, late in the fight]
 * Smells like angry fish. [Neutral, late in the fight]
 * You told Undyne you didn't want to fight. But nothing happened. [Plead]
 * You told Undyne you just want to be friends. She remembers someone... Her attacks became a little less extreme. [Plead if Undyne has been befriended in a previous run]
 * You tell Undyne her attacks are too easy. The bullets get faster. [Challenge, lowest speed]
 * You tell Undyne her attacks are too easy. The bullets get unfair. [Challenge, higher speed]
 * You tell Undyne her attacks are too easy. She doesn't care. [Challenge, highest speed]
 * Water rushes around you. [Undyne's HP is low]
 * Flower pollen drifts in front of you. [Undyne's HP is low]
 * The wind is howling... [Undyne's HP is low]
 * The spears pause for a moment. [Undyne's HP is low]
 * Undyne looks determined. [After Undyne's health reaches 0]
 * Undyne is smiling as if nothing is wrong. [After Undyne's health reaches 0]
 * Undyne's body is wavering. [After Undyne's health reaches 0]
 * Undyne's body is losing its shape. [After Undyne's health reaches 0]
 * Undyne's body... [After Undyne's health reaches 0]
 * ... [After Undyne's health reaches 0]