That's a good idea, there's definitely some extra feedback I could add for various events and that's one of them, I think something like the ice cubes starting to crack would be a good indicator, and would properly display the fact that shooting them again resets the timer.

Thanks! I'm hoping to publish more in the future.

Thanks! I actually noticed the difficulty isn't in the best spot and didn't have time to make adjustments to make it easier.. This is partly why I made the game generous with restoring your extra lives when finishing waves/levels, and why there's a level select allowing you to choose any of the 7 levels to start from. I managed to finish it, but that's because I kept playing/replaying it to test it, definitely a lesson to get others to test the game as well and get a better idea of the difficulty.