The Origin For Mar.10 and Luigi.10 [Now being called Lu.1g1]:

Both Mario & Luigi Are completing their "quest" as the "player" shuts off the game, without saving. [DUMBASS MOVE]

Corrupting their world. only mar.10 and Lu.1g1 survived it, hense their now corrupted forms, alive but in pain forever trapped in an void of darkness.

They can travel through worlds though.

they speak: Japanese, Spanish And English

They Named Themselves After Their Lines Of Code: Mario.101000.10

and luigi.1g1

Both Of Them Have 2nd and 3rd Phases But Refuse To Use Them Because It Corrupts Their State Even More Than Before.

Lu.1g1 Is Taller Than Mar.10 Like The Original Mario Game, But that's because Lu.1g1 Used His Command Guide To Make Himself Taller

Mar.10 Is The One Holding The Microphone Because Lu.1g1 Can't Hold Things Without Breaking Them Down Into Code

Lu.1g1 Has Absolute Rage With The "Player" For doing this to them, hense the reason his "poses" look like he's screaming

Mar.10 has normal mario chromatics + Bitcrush + Glitch

Lu.1g1 Has Normal Luigi Chromatics + Bitcrush + Glitch + Delay

Lu.1g1 Has a Canon Voice.

Mar.10 Has No Voice Yet, But I take Him as My mario voice + Glitch [I can make glitch in my voice bc yes]