C++ Programmar Required to Edit Some Things in A Game Created within 12 hours

Requirement: Visual Studios 2012 I have attached the game. Issues with current game that need to be fixed: 1. there is no lives 2. the game never ends 3. there is no score for the targets hit 4. no sound 5. no background (need outer space background) 6. no menu (cannot pause the game or save score)