Flash Mario is an alternate Mario from the cartoony 2000s. Whilst he does what Mario does, he's less enthusiastic about it and most times has something to say about it, like how Mario was usually parodied during those times.
Even though these set him apart from the real Mario, he's still Mario and would do the same things our Mario would.. just.. with a different tone. Despite being from the past, he's seen a lot of the present. He doesn't tend to think about it too much.
FUN FACTS
Flash Mario originates in the far off 2000s, and that's where he currently resides!
Flash Mario & Mario aren't the same person. They've even met a couple times!
Flash Mario & Sonic didn't get along during the events of Super Mario: Super Challenge. Nowadays, there's still a rivalry, but it's eased up.
Flash Mario & Cherry have never met. But it would be really cool if they did.
Flash Mario owns a Portal Gun and other items from various Mario flash games.