So-so
I've seen better, funnier Mario flashes, but this was pretty good overall. However, it really doesn't have anything to do with Smash Bros., and the voiceovers SUCKED. There wasn't much structure to the storyline either. I loved the sound effects and music, and the Bowser whackin' it to Peach. Killing the baby with fireballs was OK too. The baby Mario sequence wasn't funny at all, nor is the reasoning for Mario's "heart being black" very clear or relevant. I hate Flood because Sunshine was probably the worst Mario game of all time, so I hope Mario kicks his ass and you never use him in a Flash again.
Well, keep it up, and maybe improve the voices and storyline. Thanks.