User can merge two or more separate objects into one, regardless whether the objects are organic, inorganic, living, dead, technological, etc. They can decide which parts of the objects are dominant in the union, what are deleted and which merge.
Super 17 (Dragon Ball GT) is a combination of Android 17 and Artificial 17.
The revived Kaguya Ōtsutsuki (Naruto) is an amalgamation of the nine tailed beasts and the Gedo statue, which became more apparent when she lost control of her powers.
Gogeta (Dragon Ball Z) is a fusion between Son Goku and Vegeta.
Mercury (Amalgam Comics) is a combination of Quicksilver (Marvel Comics) and Impulse (DC Comics)
Super Buu (Dragon Ball Z) after absorbing Piccolo, Gotenks and Son Gohan.
Wapol (One Piece) can merge anything he eats into his own body, or spit them out as a merged being.
Iblis (Sonic the Hedgehog), the raw strength, merges with...
Mephiles the Dark (Sonic the Hedgehog), the mind, to form...
Solaris (Sonic the Hedgehog)
Koume and Kotake (The Legend of Zelda) merges to form...
Ichigo becoming one with Zangetsu and his Inner Hollow for the Final Getsuga Tensho
Parts of Tahu, Onua, and Pohatu are visible in Toa Kaita Akamai
Kyurem can combine with Zekrom to create Black Kyurem or Reshiram to create White Kyurem.
Iron Man + Green Lantern = Iron Lantern (Amalgam Comics)
When Hollow Ichigo takes full possession of Ichigo's body, the body undergoes a full transformation into a Hollow creature. He is granted with high-speed regeneration, enhanced strength, speed, durability and spiritual power, enhancing his Getsuga Tenshō, firing a Cero and having an extra appendage.
Ichigo's new Hollow Form. Granted with immense strength, durability, speed and spiritual power, enhancing his Cero, developed a Sonido and still has his high-speed regeneration ability.
Sora (Kingdom Hearts II) has the ability to combine with his allies to temporarily boost his abilities with his Drive Form ability excluding the Limit Form that was introduced in the Kingdom Hearts II Final Mix version.
The Elementium Monstrosity (Warcraft) is the merging of all four Ascendant Council Members and gains new powers.
Kevin Levin (Ben 10) can become a Amalgam of aliens by absorbing the DNA energy from the Omnitrix. Dubbing himself as "Kevin 11".