The music had the same effect on me... perhaps I shouldn't have added it. Thanks for the feedback!

I think the trouble with the freezing is due to scratch's click detection being a bit slow and some inefficient programming on my part. Thanks for the advice!

You need to touch the white medical supplies for about half a second continuously for them to collect. Each one has a counter that ticks up while you are touching it and rapidly goes down when not touching it, so to collect one, you need to make this counter reach a certain amount. The best way to do this is usually by freezing the ground below you so that you are touching the supplies continuously. This probably could have been explained more clearly in the game, so my apologies about the unclear mechanic. Thanks for the feedback!