Big Fat Sword: vignette3.wikia.nocookie.net/generato…
The big fat sword (also known as the B.F.S.) is a massive orange sword that Rex can transform either arm into. It is one of Rex's most lethal machines. Although it is used offensively to easily cleave through objects, it is can be used to deflect attacks. Once stabbed into the pavement, the big fat sword can provide mobility for Rex and others who hold on to it.

Battle Saw: vignette2.wikia.nocookie.net/generato…
Using a lever on the side of his big fat sword, the top half of the sword will split apart and begin to rotate at a high velocity. This transforms the B.F.S. into the battle saw—a giant orange circular saw that can slice through tough objects.

Smack Hands: vignette2.wikia.nocookie.net/generato…
The smack hands are massive orange gauntlets that Rex can transform his arms into. The smack hands give him incredible strength, allowing him to break through obstacles or lift heavy objects. When forming them, he has control over the overall size, length, and flexibility; being able to extend them to reach certain distances. Rex can use his smack hands to significantly push himself into the air and absorb impact when landing. They are also moderately capable of shielding against lasers and debris, however, they are weak against acid. Out of all machines, the smack hands seem to be the only ones that are nerve-sensitive.

Punk Busters: vignette1.wikia.nocookie.net/generato…
The punk busters are a pair of massive orange super boots with retractable spikes on the soles. They allow Rex to jump hundreds of feet into the air or jump across ten square blocks. He can also use the punk busters to repel powerful EVO enemies or kick through thick metal. In his own words, it feels as if "you were roundhouse kicked by a freight train". Like a hydraulic cylinder, the punk busters can have its foot extended to kick enemies away. A stomp is strong enough to dismantle its surroundings or cause rising fissures accurate enough to repel its target.

Boogie Pack: vignette1.wikia.nocookie.net/generato…
The boogie pack is a jet pack with a pair of wide orange turbine wings. Rex is capable of using it to fly at high speeds; it also gives him a high level of agility. He can launch the twin turbines at an enemy EVO like a bola. He can also shoot two large grappling hooks on the top of both turbines. The boogie pack can also successfully propel Rex underwater. Rex has also use the turbine wings to create compressed air. Unfortunately, there is a limit as to how much weight his boogie pack can transport at once.

Slam Cannon: vignette3.wikia.nocookie.net/generato…
The slam cannon is a large orange projectile cannon that Rex can transform either arm into. Similar to a rocket launcher, it is positioned to rest on his shoulder. However, it does not produce its own ammo; instead, a maw on the back end of the slam cannon can extend into the ground and reload solid material for ammunition. It then proceeds to fire the balled material at its target with great force.

Rex Ride: vignette2.wikia.nocookie.net/generato…
The Rex ride is an orange hover motorbike that Rex can form out of his lower legs. The vehicle can drive over any terrain and can go over 200 mph. Despite lacking wheels, the Rex ride is capable of driving up vertical loops and curves. It has a retractable battering ram instead of an engine block and it can be used like a shield to break through trees and various other objects. A helmet build also comes with the Rex ride for protection.

Blast Caster: vignette2.wikia.nocookie.net/generato…
The blast caster is a machine that consists of a navy-colored, backpack dynamo and a long, black tentacle-like whip that extends from his right arm. Rex appears to have control over the appendage like a muscle; wrapping around enemies or managing to grab small objects. When freely flying through the air, Rex can make the whip cut and turn corners at will. Unclear whether this is only possible underwater, Rex has demonstrated taking hold of objects from afar and reeling himself in. It can also channel electrical shocks powerful enough to stun an enemy. The whip can thin out and break if put under enough stress.

Funchucks: vignette4.wikia.nocookie.net/generato…
These are a pair of giant, metallic 'nunchaku' that are attached to both of Rex's arms. He can spin them at windmilling speeds and then launch either arm at his target. Defensively, they can divert heat seeking rockets if spun fast enough. He can also use them to generate a destructive energy pulse by slamming them together after spinning them, allowing him to shoot a light blue arc of energy at his enemies.

Bad Axes: vignette3.wikia.nocookie.net/generato…
These are a pair of large blue axes with energized blades that Rex builds with his hands. The axes are so powerful that they are capable of easily slicing Providence fighter jets with one slice.

Block Party: vignette4.wikia.nocookie.net/generato…
The block party is a pair of navy-colored metallic gauntlets that generate blue energy shields made of highly energized atoms. The block party can either generate two individual, circular shaped shields on each gauntlet, or it can form a dome to surround Rex on the ground or in mid-air. The energy shields are capable of withstanding an extensive amount of damage before shattering like glass. The shields can block, not only energy-type attacks, but ward off solid projectiles and physical attacks as well. If positioned well enough, the shields are capable of deflecting attacks back at the enemy.

Sky Slyder: vignette4.wikia.nocookie.net/generato…
The Sky Slyder is a blue glowing machine that Rex builds with his lower legs. It is similar to a regular surfing board, except it can fly at high speeds in midair.