I'll give this a 3, mainly because:
The pros:
1. You used SNK sprites, that's something the flash community is lacking, so good job on that.
2. Having Kim Kaphwan, Kim Dong Hwan, Kim Jae Hoon, and Lee? Wow, you love SNK, don't cha?
1. Of course spelling and grammar, sometime's people are ass on that, but it's a requirement in a flash, in my opinion.
2. The fights were a little dry.
3. Background was dry as well.
4. The start of the flash had no dramatic style, silence isn't good.
You have the potential to be great, I hope to see more in the future. Good luck!