A Subroutine is an item in TRON 2.0 and TRON: Evolution that provides a new weapon, protection, or a utility/performance enhancement.

Every subroutine can be one of 3 levels, from weakest to strongest: Alpha, Beta, Gold. Higher level subroutines usually have an increased energy cost or apply a higher cost to a weapon. In the memory ring, an alpha subroutine fills three blocks, a beta fills two blocks, and a gold fills one block. The configuration of blocks in the memory ring is tied to the computer system; an older computer will have less memory and therefore fewer blocks available.

To get better versions, a player must either find them while traveling through the game or use an Optimizer to upgrade the subroutines they have.

Weapon Subroutines

Subroutine	Primitive	Icon	Description
Disc (Disc Primitive)*	Disc		Identity Disc from movie, starting weapon, no energy cost
Sequencer	Disc		Throw multiple disk sequentially, up to 4 in the air
Cluster	Disc		Explode the disk in midair or on impact
PRod (Rod Primitive)*	Rod		Melee, stun enemy and drain health
Suffusion	Rod		Shotgun, powerful short-range, inaccurate long-range
LOL	Rod		Sniper rifle, scope zoom
Ball (Ball Primitive)*	Ball		Timed grenade
Ball Launcher	Ball		Rocket launcher/RPG
Drunken Dims	Ball		Shoots multiple inaccurate exploding grenades, good at short-range
Blaster (Mesh Primitive)*	Mesh		Machine gun, low damage, inaccurate
Energy Claw	Mesh		Melee, drain energy and health
Prankster Bit	Mesh		Guided missile that creates black hole on impact/detonation

* Primitives are always equipped and have no Subroutine object in Jet's inventory.

Armor Subroutines

Utility Subroutines