I liked how you drew the characters.
As for the rest, I thought the bit when he "dived" back into the forest was
animated well. However, the scenes with him running need some work, and the explosion
FX,etc. As for your comp freezing, I suggest getting a stronger one, or simply
feeding Flash more memory. This submissions score could have been higher,
had you compressed your audio, or used a shorter song. All in all, not bad. :)