I am glad to see a flash animation which isn't entirely tweens. (I have a feeling ol' grandma is a tween -.-) It may be short, but I can guess it took a while to make...
Could I suggest maybe put a bit more time into another animation so it could be more aesthetically pleasing?
Animation: 5/10
Plot: 5/10
Sound: 6/10
Overall: 5/10 and 3/5
Keep animating son! Good job.