Mass Effect 2

Notice after you press Triangle, the planet information screen on the right will tell you if the scan of planet reveals if it is "Rich", "Moderate", or "Poor". Rich planets typically give about 10+ good scan for ores. Ore yields vary from 1,500 to 3,000. Moderate will give about 8+ good scans, but around 35% to 55% yield compared to rich planets. Poor will give 5+ scans with yields 5% to 25% compared to rich planets. Note: If there is an anomaly on the planet (usually a rich planet) and you land before you scan, typically the Star Map on the Normandy will put you in a strange location away from the anomaly planet. Go back and rescan to get your ores.

Have a saved game file from the original Mass Effect and use that profile in Mass Effect 2 to get the following bonuses.

100,000 credits: Mass Effect character with the "Rich" achievement.
2,000 experience points: Level 50 Mass Effect character.
30,000 credits: Level 50 Mass Effect character.
5,000 of each resource: Level 50 Mass Effect character.
4,000 experience points: Level 60 Mass Effect character.
50,000 credits: Level 60 Mass Effect character.
10,000 of each resource: Level 60 Mass Effect character.

Fire the M-920 Cain and keep [Fire] held while pressing [Reload] after each shot. The shots will keep firing during the previous shots' explosions.

While recruiting Tali on Haestrom, direct sunlight will damage you and your squad's shields and Biotic barriers. Because Grunt uses armor, he is unaffected by the sunlight and does not suffer weakened defenses while directly exposed.

To find easy mining planets, go to the Micah system in the Vallhallan Threshold. Look for the three planets hidden in the asteroids. They are all "Rich" planets with a lot of materials to help with upgrades.

Recruit Morinth to get the Dominate skill and get a large amount of Element Zero. Purchase the Advanced Training upgrade and choose Dominate. This result in a bonus skill point, which is then used by the Retrain Powers upgrade. Repeat this process to get another skill point.

Talk with Yeoman Kelly Chambers often and select the kind responses. Invite her to dinner when you get that option. Do not let Kelly die during the final mission and select a loyal escort for the crew in the final scene. After completing the game, talk to Kelly. You will get an email from her. Go to your quarters and invite her up using your console.

Successfully complete a party member's Loyalty mission.

Complete the following tasks to unlock PlayStation 3 trophy rewards.