Weapon powers (i.e., those that are unlocked on each weapon type’s skill tree) have been improved:.

- Inventory and stores now have sorting functionality.

- All Junk items can be converted into Omni-gel or sold to merchants at once.

- Specializations (the ability to train/upgrade certain weapons) are still class-specific.

All weapons can be used by any class without penalty.

- They are now also available to purchase from merchants.

- Previously, these stopped dropping at higher player levels.

Ammo mods (Anti-Organic, Anti-Synthetic, etc.) can now drop throughout the whole game.

All relevant enemies now take headshot damage in the first game (Previously some did not, including humanoid enemies).

- Improved aim assist for target acquisition.

- Aiming down sights/”tight aim” camera view has been improved.

- Weapon sway removed from sniper rifles.

Weapon accuracy and handling has been significantly improved:.

Melee attacks are now mapped to a button press rather than automatically occurring based on proximity to an enemy.

Mass effect 2 gameplay