Gunther

 is a gun that grows stronger with each room cleared.

Effects
Gunther has 3 stages of behavior. Upon clearing a room, there is a chance to gain friendship with Gunther, indicated by him talking. At 3 friendship, Gunther advances to the second stage. At 6 friendship, he advances to the third and final stage.


 * First Stage: Fires piercing bullets at 6 damage.
 * Second Stage: Besides piercing, bullets deal 9 damage and bounce twice.
 * Third Stage: Bullets deal 12 damage and home in on enemies instead of bouncing.

Quotes
First stage:
 * "My previous owner cleared that room faster."
 * "Next time, aim a little better."
 * "This is going to be a long day."
 * "Well, you didn't die."
 * "yawn"
 * "Why am I here?"

Second stage:
 * "...well done."
 * "Not bad for a (random insult)."
 * "That was alright, I guess."
 * "Decent use of bullets."
 * "I'd give that a C... minus."
 * "Maybe I was wrong about you."

Third stage:
 * "We make a pretty good team."
 * "Top-notch work."
 * "Past, here we come!"
 * "Phew! That was exciting."
 * "Yeah!"
 * "Go team Gungeon!"

Trivia

 * The Quote "Go team Gungeon!" may be a reference to the Venture Bros. catch phrase "Go team Venture!"
 * Gunther is a pun on Gun and the common German name Günther.
 * Gunther may also be a loose reference to the Ready Player One book series as “Gunter” is a phrase used to describe those in the original contest for Halliday’s Easter Egg.
 * When shooting a north wall, Gunther's bullets will leave hitmarkers that resemble the letters N, R, and Φ, which also happen to be the same attacks that Bookllets use.
 * When Gunther's magazine is fully empty, the face on the gun will appear to be sleeping.
 * Gunther has two reload animations. When reloading a partially empty magazine, the character flips him end over end. When reloading a fully empty magazine, the character tilts Gunther on his side and shakes him.
 * Gunther may be a reference to the Gallows Dodger, a special weapon in Saints Row: Gat out of Hell that also has infinite ammo, gets stronger by killing enemies, and talks to its user. The Jealous Weapon reference may come from Gunther from the TV show Friends.
 * Gunther's appearance resembles that of Vivec from the game The Elder Scrolls III: Morrowind.
 * Gunther's face could be a reference to the game Doom, where there is a Status bar face which looks from side to side.