Blast Rush LS is more than a port; it's a collection of new and legacy content tailor-made for a PC/console experience. Here's just some of the differences:

• Spruced-up graphics with a retro-accurate resolution
  
• 2 new bombs per ship, for a total of 9 different bomb types
  
• 4 unique minigames that further play with shoot-em-up concepts
  
• Bonus and archival content like developer notes, WIP art, and a soundtrack player

We'll have more info on Blast Rush LS leading up to release. In the meantime...