Jack: He can also an insane healing factor that allows him to regenerate down the the bone, even going as far to devour human flesh to enhance the process. But his strongest attack is the Plasma Breath, which can almost annihilate anything it comes into contact with.
Feats
Lifted and threw at least 81,600 metric tons with ease
Is one of the few individuals to stop the normally fearless Samus cold in her tracks
Responsible for the genocide of the Chozo civilization on Zebes
Destroyed a Mountain casually in 960x Gravity
Bested Samus twice
Outran Samus' ship which travelled the galaxy in six months
Died on multiple occasions, but always came back
Responsible for the massacre of the colony K-2L
Tanked multiple attacks from Samus' plasma cannon
Known as the Cunning God of Death for a reason
Survived disintegration from Phazan
Able to react fast enough to dodge plasma shots from Samus while charging at her full speed even at point blank range and exhausted from a previous fight
Can easily out-speed Samus in her Zero Suit and even in some Power Suits, who moves Mach 4.9 in 960x Gravity in the Zero Suit
Jack: Ridley has destroyed a mountain with his Plasma Breath while on a planet with gravity 960 times heavier than Earth's and survived a planet exploding in his face worth 4.18 Zettatons of TNT. He has outran Samus' spaceships, which travels at 10 millions faster than the speed of light.
Emma: Ridley is tough enough to take a hit from the majority of Samus' weapons, including her Ice Beam and Power Beam. The Ice Beam is powerful enough to freeze a star's surface and the Power and has come back from the dead multiple times, although half of them require outside help.
Weaknesses
Overconfident
Despite his cunning, he is extremely blood-thirsty
Metroid: Other M
Extremely arrogant
Healing factor has limits
Defeated and killed by Samus every time, even with his Meta, Omega and Neo forms
Jack: But of course, even a God has faults. If someone attacks Ridley while he charges his Plasma Breath, he can injure himself. And he has only two victories over Samus out of all their fights, even with his Meta and Omega forms Ridley still loses a lot.
Emma: His healing factor is also not instantaneous and requires time to do so. And though he's called the Cunning God of Death, whenever Ridley gets focused on a fight, which is literally ever time he does, he abandons all common sense and fights like a feral animal.
Jack: But even then, Ridley has proved time and time again why he's Samus Aran's greatest and most persistent enemy in Metroid.
Ridley knocks Samus into her ship which begins flying as if to escape. However, Ridley flies up and charges his Plasma Breath, which he fires at Samus and her ship, engulfing them in a large explosion.
Ridley VS Rayquaza: Draconic Space Deities
Start from the beginning