Take Your Time With the Hacking Puzzles.Hold the Reload Button to Switch Weapons.Put Squad Points Into Your Class Mastery.Remember to Tell Squad Mates to Use Ammo Powers.Put at Least One Squad Point into Each of Your Squad Mate's Powers.Manually Tell Squad Mates What Weapon to Use.Use the Weapon / Power Wheel to Freeze Time.Catch Up With Your Crew Between Missions.Save 'Stop the Collectors' Missions Until Last.
This page of IGN's Mass Effect 2 wiki guide is all about providing Tips & Tricks to help you out with the Basics of Mass Effect 2, and beyond.