Pilot your space ship and fight against hostile alien species: Don’t let them reach the bottom of the screen or it’s game over!

Changes:

– some code review
– slightly reduced the fx volume for ‘seq’ audio option
– fixed a bug that often prevented scramble stages (from the second on) from turning left/right
– re-defined stage parameters
– the third power-up now is a shield that allows the player to avoid a game-over condition once
( this is a mix between the ‘timed’ shield and the extra life that moonshot22 suggested : Thank You Ron ! )

http://www.atariage.com/forums/index.php?showtopic=108514&st=100