Cartoony :P
The way you drew the worms is perfect. I like to see people using shadows and highlights on their characters to give them that nice cartoony look. I would suggest that you work a bit on your animating skills. Make your projects with at least 20 frames per second. Use motion tweens, onion skinning etc. It will be rewarding. The sound was okay, maybe you could try putting some background music, although I'm not sure how that will end up. Last, but not least - I liked the plot about the fake mine, I felt it was a bit too short. You could use your skills to provide your flashes with some more action, I would love to see another animation from you, especially if it includes worms using the baseball bat :D Keep up the good work!