Dr. Koopa (Lilo and Stitch)

Dr. Koopa (full name Prince-Doctor Bowser Koopa the Second) is a major character in the semi-canon "Metallix, Lilo and Stitch" series. He's the creator of Metallix and the psychiatrist ("psychological balancer", as he calls it himself) of Lilo. He came from another timeline because of an anomaly in the space-time continuum was threatening his timeline.
== Personality ==
Dr. Koopa is practically the polar opposite of Hamsterviel. While Hamsterviel is self-centered, diabolical and abusive, Dr. Koopa is selfless, benevolent and kind-hearted. Dr. Koopa treats his creation, Metallix, as his equal, and shows great concern when Metallix snaps. By contrast, Hamsterviel has no care for his former partner Jumba nor his former henchman Gantu. Dr. Koopa also is brave, unlike the cowardly Hamsterviel. 
However, Dr. Koopa and Hamsterviel have one thing in common: they both act childish at times, although we see it less often and it's less obvious with Dr. Koopa than with Hamsterviel. Dr. Koopa enjoys mocking Hamsterviel by calling him a rat, which drives Hamsterviel mad and prompts him saying he's a hamster, with which Dr. Koopa once replied with: "You think the fact you look like a hamster automatically makes you a hamster? You have the heart of a rat! That's the only thing that matters!" (This also shows Dr. Koopa isn't above making stereotype-based assumptions: not all rats are evil. At least not on Mobius.)
== Bio ==
Dr. Koopa is somewhat taller than Bowser Jr.'s game counterpart (justified by the fact he's 15 in his debut) and turned his trademark bib into an arm bandana. However, that's not his biggest difference. The obvious difference is that some of Dr. Koopa's body parts (namely, his limbs, shell and left side of the face) are robotic. The robotic parts are grey, except for his shell, which he painted it to be emerald-like. 
His robotic eye is normally red, but it can change it's color to emote. When happy, it's green, when sad, it's blue, when scared, it's yellow, when he's shipping, it's pink. It also turns blue when drawing power from Kingdom Hearts, due to his desire to give a happy ending to everyone. 
His organic eye is normally green, but it can change colors depending on his internal balance between light and darkness. Usually, when he uses light, it's blue, and when using darkness, it's yellow. However, it also can change to emote: when furious, it becomes red.
== Welcome tropers, a'cmon by/Aloha, e komo mai! ==
* Adaptational Heroism: Obviously.
* Berserk Button: His worst fear, Mario, enrages him instead of scaring him.
*Big Good: Everything he does is good done for the sake of good.
* Blessed With Suck: He wields the freaking χ-blade! No Keyblade Wielder has a happy life! Then again, Dr. Koopa's hardcore counterpart has played with the fabric of reality before, so he might override this not only for himself, but also for the other Keyblade Wielders, given that the χ-blade has (according to Metallix) the power to overwrite reality.
* Chaotic Good: He believes that achieving a happy ending for everyone will fix the anomaly.
*Color-Coded For Your Convenience: Each one of his eyes has it's own code:
**His robotic eye, normally red, changes it's color to emote.
**His organic eye, normally green, changes it's color depending on his internal balance between light and darkness. However, it turns red when he's furious.
*It's All My Fault: He states that the fact he didn't kill Xehanort and Vanitas on sight is the reason why he couldn't bring Terra, Aqua and Ventus.
* Lampshade hanging: He often lampshades several things, and gives them logical explanations.
*Foil: To Hamsterviel.
* Morality Pet: To Lilo.
* Red Eyes, Take Warning: Subverted by his robotic eye, which is normally red. However, his organic eye plays this trope straight, as it signifies Unstoppable Rage.
* Shipper On Deck: Just like his hardcore counterpart, who ships several Freedom Fighters (most notably Sonic and Sally), Dr. Koopa in "Metallix, Lilo and Stitch" ships several experiments. 
**His plan of rehabilitating Angel is to hook her up with Stitch. Needless to say, it works, but Metallix was far more excited about this plan. 
**He also ships, albeit to a lesser extent, Yin with Yang and Yaarp with Belle.
*Tropes Are Tools: See Red Eyes, Take Warning above.