It`s pretty easy to get lost in this game because the sewer is huge.
you have to search through the sewer to get what you need, like the treasure maps and collect coins to buy upgrades for the jammydoger (boat), but you have to find the right people to buy off.
you can either play as rita or roddy, or as the jammydoger for the chaces and treasure hunting.
beware of the slugs, bugs and toads evil henchman (you can`t kill the henchman, you can just stun them).
remember that this game does not save atomatically when you turn your ds off, press start and go to save game, otherwise your`ll have to start all over again.
visually this could be better, but it`s still ok.
overall it`s an enjoyable, and fairly addictive game.