A streamlined combat system makes the game even more action-packed than before, with a new regenerating health system that means you spend less time fiddling with menus and more time shooting enemies. You can also direct teammates individually with a simple press of a button, giving you greater tactical control over every encounter. The number of planets you can explore, and the complexity of the sub quests you find on them, has been greatly expanded from the first game - giving you a whole galaxy to explore at will. The original game was the most cohesive mix yet of action game and role-player and this sequel goes even further in combing both genres into one giant space opera. [Key Features: Episode Two Commander Shepard returns as the award-winning action role-player offers up even more intense storytelling and a whole new threat to humanity. All action All-new combat options make the game even more action-packed, with more versatile controls, more weapons and better management of allies. Age of discovery Even more exploration options than before, with more detailed side quests and many more developed planets to visit. Good talker Revamped conversation system is more dynamic than ever, with faster, more realistic dialogue and a new cinematic camera. Ongoing story If you have a save file from the first Mass Effect then the decisions you made will have an effect on the new game and old characters will remember you.