1.Red Gyarados (Pokemon)
2.Phalanx (Shadow Of The Colossus)
3.Archdemon (Dragon Age Origins
4.Alduin (Skyrim)
Alduin is the Embodiment of the End of All Creation. No one can physically or spiritually kill him except the Last Dragonborn, and even he can't keep Alduin dead.
5.Shenron (Dragon Ball Xenoverse)
Shenron is a fictional dragon from the Dragon Ball Z anime series created by Akira Toriyama. He is summoned by collecting all seven Dragon Balls and can grant wishes when awakened. Shenron plays a central role in the series, as the pursuit of Dragon Balls often drives the plot forward. Despite his immense power, Shenron is bound by certain rules regarding the wishes he can grant.
6.Bahamut (Final Fantasy)
7.Fing Fang Foom (Marvel Ultimate Allience)
8.Dragon Man (Altered Beast)
9.Ridley (Metroid)
Ridley is a recurring villain in the Metroid series and also appears as a fighter in the Super Smash Bros. series. He is Samus Aran's lifelong nemesis, first appearing in the original Metroid game released in 1986. Ridley is a key member of the Space Pirates and is responsible for the death of Samus's parents, often acting under the orders of Mother Brain.