Hm...
I personally thought the idea was a little naive, but cool in its own way. A superhero that relied on speed and strength over powers, vs a psychotic evil genius who managed to control lightning. It's kinda classic really. However, I did find the subtitles over actual voice-acting quite a let down. Text makes it hard to create the same affect a good voice-actor can offer. Nevertheless, the graphics were all right, though the climax could have used a fair bit more tension. It seemed all a little too easy. Every good story (even those told visually) had some sort of twist that despite the odds ends up working very well for the conclusion. Perhaps in your next one, you could consider a more genius way to take down a stronger, more powerful enemy, rather than a simple blind-spot, heavy rock sort of idea.
I liked it nevertheless, you did well! The animation was particularly smooth, albeit the graphics could have used a little more detail. I await a sequel.
~VelvetDarkRocks~