You made this in a day? I'm pretty sure this was the first game submitted to the jam too! Good work! The main thing I feel this game is missing is a nice soundtrack to groove to and a mechanic that speeds up the clams movement after you get a certain amount of points. Maybe even add a high score feature for those that like to top their best scores. Overall, I think the game is really simple and could have been fleshed out more if you were able to spend some more time on it. But, it is not a bad game!