This was one of the first flash games I have ever played, I still remember I knew how to choose different skins for characters, I loved the Blue Ball and the Strawberry, it was really fun and interesting, I'm looking forward to play this game again sometime. Thank You Sir-Davey and Rho for completing my childhood. <3 (19.02.2021)
Edit: I played it today (23.02.2021) and I was surprised, this game is awesome considering the fact it came out in 2007, I still remember how to play and how to select the ''hidden'' characters, the music works really well with the stages even though the stage of Mogadishu (Somalia's capital) has the song Chaoz Japan in it, though it fits, it doesn't matter. Each character has an unique set of special attacks, I really like Ball Lock's attack because it's basically blue electric balls and if you hit up and down you can generate electricity, awesome!
My favorite character is that blue ball and my favorite stage is the Space, it's a really unique one. :)