Vanishing Gungaroo

"Hahahah! Destroy, destroy, destroy! Hahahah! Look at me, look at me! I'm king of the mountain!"

- Vanishing Gungaroo

Vanishing Gungaroo, also known as Vanishing Gungaroon (バニシング・ガンガルン) in Japan, is a Kangaroo-based Maverick from Mega Man X7 and member of the Red Alert Maverick hunting organization.

Strategy
He begins the boss battle in his signature Ride Armor, and the player must confront him in a Ride Armor battle. Once his Ride Armor is destroyed, the player can pummel him a little bit more before he destroys theirs, and once everyone is on even ground, use Wind Cutter or Souenbu to finish him.

Stage enemies
Enemies in Vanishing Gungaroo's stage, the Tunnel Base: 
 * Large Mine
 * Mega Tortoise
 * Pastegunner
 * Proto Ride
 * Runnerbomb
 * Wall Blaster

Dialogues from Mega Man X7
Vanishing Gungaroo: Hahahah! Destroy, destroy, destroy! Hahahah! Look at me, look at me! I'm king of the mountain!

X: Stop it! Stop it right there! Do you know how hard we worked to rebuild this world?!

Vanishing Gungaroo: Aw, shaddup! Don't order me around, ya pile of scrap metal!

X: Shoot... Looks like there's no choice but to fight...

Vanishing Gungaroo: Blonde hair and a saber... You must be Zero! So they sent an S-Class hunter to stop me, huh?! But you'd need a dozen of 'em to beat me!!

Zero: How sweet. You look like you're having a swell time swinging around your new toy.

Vanishing Gungaroo: Stop treating me like a kid! Why I oughtta...

Zero: Hey, calm down, or you'll have to take a time out in the corner.

Vanishing Gungaroo: How do you figure, Axl? Who would've thought I'd turn out stronger than YOU! I'm not the kid you used to know!

Axl: But you're acting like a kid right now.

Vanishing Gungaroo: Don't call me a kid! I ain't that no more!

Axl: If you keep misbehaving, you won't get your snack! 

Trivia

 * Vanishing Gungaroo's boxer theme is a reference to boxing kangaroos.
 * Vanishing Gungaroo has a brief appearance in the last issue from Dreamwave Productions' Mega Man comic, where Zero cuts his head.
 * Magma Dragoon and Bamboo Pandamonium are also Mavericks that can be fought with Ride Armors.
 * Vanishing Gungaroo is one of two bosses in the Mega Man series as a whole to have more health (counting the health of his Ride Armor) than the other seven bosses from the game he appears. The only other instance where this happens is with Tretista Kelverian in Mega Man Zero 3.