Just thought I'd post my 2014 April Fools OC here.
Baron 'Awesome Danger' Orion CrystalOr Bad Oc to friends
Gender: Currently male. His gender changes with every blue moon.
Species: Alicorn Breezie Batpony (used to be a human)
Mane: biG & grean and stuf
Tail: all rianbow like
Eyes: rEd
Body: i dunno what color to call it
Cutie Mark: i couldn't figure out how to add it on the pony creator
Age: 2346 years 7 months 13 days 20 hours 17 minutes 3 seconds but he is immortal and looks like a young adult
Personality: Bad Oc is bad flank! He has saved equestria more times than anypony ever. He is smart, funny, original, cool, awesome, original, kind, happy, original, and angry at times. Everypony will be instant best friends when they meet him because he is so friendly. But he doesn't like talking about his dark, tragic, secret past!!&!
Likes: guns, explosions (he likes movies by Michael 'Horse'bay, who is the pony version of Michael Bay), killing changelings, lasers, rainbow dash (they are secretly married), donuts, cheese, flying.
Dislikes: non-guns, boring ponies, changelings that are alive, Princess Luna (they used to be in love but Luna left him),
History: Bad Oc used to be a human in our boring world but he fell into a portal and got sent to Equestria. This made him immortal so he lives forever. He travelled all over Equestria and met every single pony in existence and became best friends with them all!
One day, when walking through the Everfree forest, Bad Oc needed to go to the toilet. He went in some bushes and the Tree of Harmony suddenly grew in that same spot, meaning Bad Oc made the Elements of Harmony. This is how he got his cutie mark.
Bad Oc lived ages until Discord came. He fought him with Celestia and Luna and won. Bad Oc and Luna fell in love but then they had an argument over the last pop tart , which made Luna mad. This was why she really became Nightmare Moon. Celestia sent her to the moon and got amnesia and forgot about Bad Oc so he left.
Bad Oc went to fight changelings in alternate universe where changelings rule the world. He got there in the ARDIST which can travel in space and time. He turned into a secret double agent and a gun was added to his cutie mark.
Recently, Bad Oc met Rainbow Dash and they fell in love. They didn't want to let anyone know they wanted to marry because of reasons, so they got married in secret so no one would know. This added Rainbow Dash's face to Bad Oc's cutie mark.
Example RP segment: oh man, it is dark in here said Bad Oc as he magically teleported to the princess's underground bunker pin canterlot.
hello Bad Oc said luna appearing out of nowhere i have something to tell you
what is it?
i still love you!
and then they kissed