You seem pretty certain. You say 400K max.
Want a bet, having a minor sentence in your sig (I lost bet vs Oyvoyv/I lost bet vs Bigjon) for a week?
I win - 400 500 units or more
You win - 400 499 units or less
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS