Good word on finishing your first game
I found the game easier when three bars of heals (what you start with)
The dooms get destroyed if they hit bars from the top or side, so the game is easier with three bars.
(I take back the above, just saw the the original game being played on youtube)
you got any plans on recreating how the booms get destroyed when you loose a life.
you could just have an invisible bar that move from the bottom to the top and destroying the booms.