Nulled?
Like i said this is MyBB not IPB or vB.
It's the LEGIT Plugin. Just downloaded from a 3rd Source.
Omni wouldn't even Care about because Thousands of people use it.
Did you accidently Delete Flappy Bird?
Or have you not Installed it yet?
Even though the Owner took it off of the Marketplace, There are Tons of Releases from 3rd Party Sources!
Download: http://www.4shared.com/mobile/IyE_l00ace/Flappy_Bird_original.htm