well the recreation is more easy than the original stage, because it doesnt have a scanner that if you press a button where there's nothing it downgrades you. the graphics, if you wanted to make it a simple bits then its okay and there's no problem.
but for a flash game the recreation is okay, i think it can improve. if you can, read my comment and add a scanner so it detects when you pressed the button. also remember to add the sound effects when you get score and upgrade and where you lose score and downgrade.
3 stars. not really good but its an descent recreation
this is not meant to be offensive, just so you can improve this game if you can.