Yeah, it is defiantly stolen. I came to the first conclusion after it was first in the TOP 50 which really had nothing to do with being stolen, but I just wanted to research it more.
Ok first thing is NekoGames is a really good flash game development company releasing several games. So why would they submit one of their games with a username called TokyoExplosion.
Second is that TokyoExplosion released Cursor 10 on the same day he signed up.
Third, his posts on Newgrounds are kiddish in a way
and 4th the kid just admitted that he stole it.
http://www.newgrounds.com/portal/view/41 9430