Few tips.
If theres one thing I know, and thats, a great game, this was definatley one of them. Anyways, I beat the game, the endings really a bummer for the amount of work you put into each puzzle lol. Anyways, you need "Time Limits" you might want to try that in another mode called "Time Trial" so that way people have a nice challenge selection. I'd enjoy a nice animation at the ending, based on the Plumbers job at the end, I guess you can call it a happy ending for everyone who applied themselves to finish the game. Anyways, I'm wondering how long it took to make this, this is definatley a well rounded game with it's obvious ups and downs. The song, after awhile that got on your nerves, I would make a few more choice selections as far as music goes like "1", "2" and "3". After all that stuff, make it a little more interesting with the water scene. I suggest animated water when it goes into the right tube and it works out just right. Otherwise, I love the game and graphics. That's all I have to say, I hope you get around to this review...It might help you out a bit :).
~Reign~