The timing is just right, so if you press the block button right when the exclamation mark appears, you'll block the attack(that's only a temporary graphic, I'll probably replace it with something else later). Of course, if multiple opponents are attacking in a group, trying to block all of their attacks isn't really going to work. It's best to try and knock them down with light attacks, run away, or throw something at them.
I'm hoping that the game will have alot of strategy to it, considering that most levels will have the player fighting groups of 5+ enemies at a time. However, the AI is still fairly stupid, and it's something I still need to work alot on. They tend to bunch up too close, charge at the player but completely miss them, or do other such shenanigans.
I probably should draw a new level background. Even though I'm not actually making levels yet, I'm getting pretty tired of playing in this same level.
It doesn't seem to help that I'm hopelessly addicted to Street Fighter 4, and spend all of my free time fighting people online with Guile, ">only to see this in my dreams.
But seriously, it's a really, really good game.