An impressive, if short game. This would probably have been considerably better if it was around 30 seconds, but given that this was made for a competition and couldn't be longer, it's perfectly fine. On the other hand, the music became repetitive and attacking with the warrior is somewhat confusing.
Just an idea, if you want to stop people claiming "stolen" you might want to edit the flash for a small notice to players before they can start playing. If that wouldn't disqualify you from the Ludum Dare, that is.
And to anyone about to post a review... did you know that making false claims in reviews is against the Newgrounds Review Guidelines? Instead of claiming it's "stolen" here, why don't you consider contacting someone with as many details as possible so you can realize that it's not stolen at all (or if you're beyond hope, so they can ignore you)?