Love the game! I think it would be better if dice did some damage if they travel from one side of the screen to the other side without being destroyed. You could change it from an arcade type game to one with levels by having different maps, faster dice, and more holes. Maybe you have to survive until the clock runs out or get a certain amount of points.
Wonderful game! Great instructions, which is important for a GameJam! Its hard to believe you made this in 48 hours!