OiramOiram12345 (or OO12345 or OO for short) is MarioMario54321's evil doppleganger and the main antagonist in the movies "OiramOiram12345 and the Shadowrevers" and"OiramOiram12345 and the Dark Star X" all made by MM54321. In SuperMarioGlitchy4's bloopers, he's a minor character, usually only making cameo appearances, especially in the "Ssenmodnar" series.
OiramOiram12345's color code has been certainly made to look like approximately, but not totally, MarioMario54321's look in negative colors, for remember that these two persons are total opposites. In SuperMarioGlitchy4's videos, for an unknown reason, the color of his clothes aren't the same than MM54321's: his cap, arms and shirt are red (as Mario) instead of purple, and his shoes are brown (as Mario and many other people's) instead of white. This last look can resemble FightingMario54321's color code.
Here is OiramOiram12345's color code:
Purple cap, arms and shirt (red in SMG4's bloopers),
White shoes (brown in SMG4's videos),
Dark blue face,
Brown hair (as Mario and many other guys').
In MarioMario54321's videos
OO12345 first appeared in cameo in "The Fury of CandyCao7", then he later reappeared as the antagonist in the movies "OiramOiram12345 and the Shadowrevers" (made in 2008) and "OiramOiram12345 and the Dark Star X" (made in 2011). He finally died at the end of this last movie, along with the other Doppelgangers, and sealed in Dimension X.
In SuperMarioGlitchy4's videos
OO12345 haven't often appeared in SMG4's bloopers, and he's apparently still alive in them. For an unknown reason, he appears with red cap, harm and shirt and white shoes, instead of purple cap, harms and shirt, and brown shoes. Here are his appearances:
OiramOiram12345 is MarioMario54321's evil Doppleganger, and MM has also a few other counterparts in his videos, then those counterparts are also to OO. Here are these counterparts.
StarioStario54321: it's MM's Star World counterpart. His color code is silver blue sky all over, as the others Star World residents.
QuarioQuario54321: it's MM's 4D counterpart (from the Fourth Dimension) who appeared in the movie "Into the Fourth Dimension" made by MM. His color code is white shoes and cap harms and shirt, yellow overalls, gloves and face, and grey hair. The yellow used for his skin is different to the other one used for the yellow clothes.
QuinarioQuinario54321: it's MM's Crown Dimension counterpart. His color code is yellow all over, except on the gloves which are brown, and on the shoes which are white.
Those counterparts have never appeared in SMG4's videos, and certainly won't appear in his bloopers in the future, because he decided to focus more on Mario characters than YouTubers who appeared in his videos, and never included their counterparts in his bloopers.
OO12345 got an alternate form called "OiramOiram12345 X" at the end of the movie "OiramOiram12345 and the Dark Star X" when he was about fighting MM54321, who also used an alternate form, called "MarioMario54321 X". The final scene of the fight of the two guys in their alternate forms is seen in cameo in SMG4's video "Super Mario 64 Bloopers: The Blooper Competition" for a split second when MM54321 entered his video in the competition. OO12345 X's color code is red and black, and is opposed to MM54321 X's blue sky and white look.
OiramOiram12345's color code isn't the same in SuperMarioGlitchy4's bloopers than in MarioMario54321's videos. In MM54321's videos, the color is purple for the cap, harms and shirt shirt. However, in SMG4's bloopers, the color is red for the the cap, harms and shirt (as Mario's), and brown for the shoes (as Mario and many other people's). It is unknown why.
This last look can remember FightingMario54321's look. A Wikia contributor on this Wiki has already once confused him with OO12345 and then put a picture of him screaming angrily "MY BEANS!!" instead of a picture of OO on this article. So, someone who saw the error replaced the picture of FM by the present picture over there.
In MM54321's videos, all the dopples are defeated, and trapped in Dimension X, but in SMG4's bloopers, OO12345 is apparently still alive, and sometimes appears in the "Ssenmodnar" videos, (as SMG3). However because SMG4's Bloopers are non-canon, he may just be a fake actor, which also explains his alternative.
In "OiramOiram12345 and the Dark Star X", he stated he hated furries after he blasted Lilyncookies (because Lily blasted him too).