It was ok.
It was exactly like the real hungry hungry hippos which is a good thing if you ever want to play and don't want to buy the game but I think it is too difficult to "eat" the marbles. Also the background music could have been chosen better. Something a little more lively and less repetitious would improve the game I think. It would be nice if you included a replay button or something so that you don't have to go back to the main menu to play again with the same settings. Well I hope these comments prove useful.