Newgrounds SuperSmash Bros.
This is one of the best fighting games i've played. (that was a flash game) because it basically is very similar to super smash except for you use newground characters. I would recommend you play this game. if you are reading this, just play it.
Pros
-good graphics
-solid flash game, with cool newground characters
Cons
-in my opinion it could have used more characters and items
-story mode is short, not that many challenges in challenge mode
Can't wait for 2nd one, if they make one...