The Trick of Transformation

Hi there forumers. I have a great game which I used to play in other forums or with my friends in the school bus, and it's slightly strange but funny.
So let me explain: The game works by a person saying "I transform into (insert object name, person name, or anyhting else here) and I (Insert how you defeat the previous transformation here)."
Here's an example: A: "I transform into a cow."
B: "I transform into Mc Donalds and make burgers out of you."
C: "I transform into a fat man and eat up all your stock." Etc.

You don't have to be 100% realistic, what would be the fun point of the game if you were? Just don't transform into the following or similars please:
-A murderer that kills any living being (such as the fat man mentioned before)
-An A-Bomb or similar that blows up everything
-Some kind of "absolutely invincible ultra-pwner".

Other rules:
-Please keep your posts short, and don't be too descriptive about your transformation as it is not really necessary. No one wants to read through a detailed description of where the banana peel is brown and which shades of yellow it is, before it falls in front of the fat man which trips over it.
-If you are defeated, accept it. Don't go saying "NO U I SEE THE BANANA AND AVOID IT THEN I THRASH IT," just reply by transforming into something else...
-Defeating can also mean undoing or replairing the damage caused by the former transformation, like "I transform into a truck and provide Mc Donalds with new supplies." You CAN run over the fat man as well, but that's just you. And again, no time-reversers or similars please...
-You can also redo the damage undone in order to defeat (as you "undo the undone"), but don't go staying with the same thing over and over for 500 posts.

So, to get started:
I transform into a kitten.