: Elemental barrels are no longer fixed to the ground; you can melee slap barrels to launch them at enemies for tactical elemental damage.

: The "Slag" mechanic from Borderlands 2 was removed and replaced with Radiation , which causes enemies to explode and deal damage to others nearby upon death. Expanded Character Customization

: FL4K's animal companions will actually walk to and jump near loot chests to signal their location to the player when no enemies are around. Social & Multiplayer Features

: You can now buy ammo directly from vending machines without needing to open the full trade menu.

: Players can send items directly to friends through an in-game mail system. This system is also used by weapon manufacturers to send rewards for completing specific challenges.

: Unlike previous games where each Vault Hunter had one primary action skill, Borderlands 3 characters have multiple action skills and a fourth skill tree added in later updates, allowing for much more varied builds.

: The introduction of sliding and mantling (vaulting up ledges) significantly improves movement fluidity compared to previous games.

: Within the social roster, you can view your friends' full inventories , including their weapon types, rarities, and current mission progress.