The only interesting part was the grenade scene. Other than that it's quite boring and the voices sound the same for the both of them... so that's rather lame. If you do the voice acting on your own, might i suggest you ask a friend maybe to assist with that? I mean, you doing the voice acting for the toof characters and making them sound the same is annoying.
By the way... the toof series have gotten boring now. There's not much creativity you can do when the characters are confined to a person's mouth and are stuck in one spot.