Four Arms is the Omnitrix's DNA sample of a Tetramand from the planet Khoros.

Tier: 5-A |5-A

Classification: Alien, Tetramand

Powers and Abilities: Superhuman physical characteristics, large size (Type 0, he is 12 feet tall), additional limbs (Has two additional limbs and eyes), acrobatics (Capable of leaping high enough to travel across street blocks), vibration manipulation (Can perform a powerful thunderclap), surface scaling (Can climb up walls), resistance to high temperatures, electricity manipulation (Can tank Kevin Heatblast's fire attacks, can be immune to cold temperatures, demonstrated when he fought Dr. Animo's yeti on top of a snowy mountain, and when he was able to survive on Mikd'ity. Comparable to Looma. All abilities and resistances provided by the omnitrix to all aliens)

Attack Potency: Large Planet level (Slightly cracked the armored shell of The Great One and later grew stronger than he was at that point. Comparable to average Vaxasaurians and Talpaedans. Can harm Vilgax and Kevin 11 with his strikes. Fought against second form Malware)|Large Planet level (Can match and eventually defeat Looma Red Wind, who once threatened to destroy Earth in a rampage. Can contend with Ultimate Spidermonkey)

Speed: Massively FTL+ combat and reactions (Kept up with Vilgax and Kevin 11. Could react to and dodge attacks from Ultimate Aggregor)|Massively FTL+ combat and reactions (Kept up with Princess Looma and Ssserpent, who could fight with Kevin)

Lifting Strength: Class K (Easily lifted a giant stone pillar. Was able to physically throw Vilgax)|At least Class P (Should be much stronger than the likes of Big Chill)

Striking Strength: Large Planet level |Large Planet level

Durability: Large Planet level (Can trade blows with Kevin 11. Survived this fall. Can take hits from Malware)|Large Planet level (Can take blows from Looma Red Wind)

Stamina: Unknown

Range: Standard Melee Range, Tens of Meters via Thunderclap shockwaves

Standard Equipment: None notable

Intelligence: Gifted (Being a transformation of Ben every alien possesses Ben's intelligence, skill and experience)

Weakness: Four Arms mass can make him cumbersome and hinder him against swifter opponents. He has difficult time fitting into small spaces and fighting inside of them. When infected with a cold, his strength and stamina are severely reduced.

Feats:

•Four Arms as a 10 year old was able to defeat Mayan God of Death.

•Four Arms as a 10 year old was able to defeat Dr. Animo and his mutant mammoth.

•Four Arms as a 16 year old was able to easily crush Ssserpent and defeat him in seconds.

Notable Attacks and Techniques: Four Arms is one of Ben's physically strongest aliens that he started using as a ten year old. Due to his incredible strength Four Arms attacking style revolves around him throwing vehicles, boulders and objects at the enemy's. His tough skin helps him tank fire and sharp tools. Four Arms can do the following in combat.

•Thunderclap: Four Arms can clap his fists together to create a powerful thunderclap attack. This attack can be used to stun or disorient opponents, or to create shockwaves that can knock them back.

•Seismic Toss: Four Arms can pick up an opponent and throw them with great force. This attack can cause significant damage, and it can also be used to launch opponents into the air.