We agree with Zambini too :) We didn't want to fix this before rating time ends (we want to be fair with other lowrezjam devs) but this is the first thing we will patch.
I know the feeling, before submitting I had the option to add music and sounds in 20 minutes or trying to fix the issue that don't let the players start again the game once they die. I have opted for the first one for a better game experience and hope that people could figure out by themselves to refresh the browser page.
I will make a "director's cut" version of the game too after the end of the jam :-)