Well I thought it was funny, in a childish manner.
Ok that was preety good. This is your first flash and I know that everyones gonna criticize you. I just submitted my first yesterday and it got blammed in an hour. (F-yall) The humor concept is just a little primitive but funny nevertheless. One big thing is the voices. You need to take some time to find Luigi voices. The same sounds over and over again also make it dull. (i.e. beggining "wahh" twice). Overall this was a good flash for a first time. I think my flash is way funnier than this but as usual people always judge by looks rather than whats on the inside.
Im not like that so I gave ya a 3 out of 5 and a 7 out of 10.
One more thing: The title "Stupid Mario Brothers" is already in use, as well as a sequal to it. Soon there will be a third. So you might want to change the title and the name in the flash.-not might, need to, the Stupid Mario Brothers flashes are on my favorites PLEASE CHANGE NAME.