Tacnayn is the evil version of Nyan Cat (tacnayn=nyancat in reverse).
About
Just as TacNayn is NyanCat's name in reverse, the song is just a reversed version of the original nyan cat. Fans say it sounds like "Lemon lemon lime lime lime lime lemon lemon lime lime lime". According to the original YouTube video’s description:
“Tacnayn, (pronounced tack nayen, or in his native tongue a complex series of clicks and shrill cries) his very name brings children to tears. Tacnayn’s return heralds the end of reality as we know it; within the next year the seas will boil and skulls will rain down from blood-filled clouds. (Parents remember to keep your children indoors for the skull rain thing.) Every 22079460347 years Tacnayn’s universe, the reverse-verse, merges with our own in a battle for reality supremacy! Donning the evil belgian-waffle armor Tacnayn cannot be harmed by our puny mortal weapons; only his arch-nemesis, NYAN CAT is powerful enough to tear through his golden, delicious hide. So, remember to keep your eye out for blood red clouds and boiling seas; just stay in those days and make yourself some hot-pockets.And Behold,his devilesh sister,Tac nine,with the numbers 666 on her poptart-yo mama
Powers
Tac Nayn has telekinesis, lazer vision, reversesa beam(causes things to go in reverse)and a gray rainbow behind him that makes him faster.He can shoot Dark Beams from his mouth,and can even create random explosions and has the ability to shoot an almost infinite amount of Homing Super Rockets out of his palms.
Origin
A video was uploaded to YouTube called taC nayN (the very first) which was uploaded by AmazingPurpleCat on 20 Apr 2011. Another video was uploaded to YouTube called TACNAYN {original}, uploaded by Urijahuri on 21 Apr 2011.
Videos
TaC nayN (the very first)
The very first Tac Nayn/taC nayN video.
TAC NAYN
Tac Nayn