Mass Effect 2 achievements

Hit 20 different targets with multiple biotic powers to combine the effects

Shoot and kill 20 enemies while they're knocked back by a punch

Disrupt the shields of 25 enemies

Reach Level 30 with one character

Successfully shut down the rogue VI in Project Overlord

Keep your team alive through the suicide mission

Confront the Shadow Broker

Kill enemies with 5 different heavy weapons during the game

Gain the loyalty of the thief

Gain the loyalty of the mercenary ("Cerberus Pack" downloadable content)

Fully upgrade a weapon

Successfully pursue a relationship with a teammate