You stay in Morph Ball? That's what I do. I just stay in Morph Ball 'till he opens wide, then I go into crouching positon and just fire charged shots diagnolly at him.
Don't forget the trick where you can fire straight up and into his mouth when he first appears. Listen for the ceiling overhead to explode, then aim up and start blasting away with missiles. If you're fast enough, it takes off half his health andyou can get him to go into Space Jump mode the first time he opens his mouth.
But if you're talking about when he's in Space Jump mode, then no. Staying in the corners is one of the worst things you can do. What works for me in that freak stage of his, is just stand with the missile hatch open and aim up. When he's over you and open, shoot. If he drops a bomb on you, shoot to destroy it. Sometimes, he'll drop a bomb at you, and even though you shoot straight up, your missiles misses the bomb even though it still hits you. If you pixel count, however, you'll notice that if you just turn around and aim up, you can hit the bomb before it hits you. It's not a foolproof strategy, but it works well enough for me.
IIRC you need to have Ridley-X itself force you into the wall to get in there. I dunno if you can do it in 1%.
I actually totally own it before it has a chance to hit me. Sure it gets me with fireballs and when it goes low once in a while, but other than that, I take it out like nothing. Just keep the good angled shots and you'll have it screech every twoish hits. DD's 1% vid shows him dodging the pogo bounce several times and getting all crazy with morphing, but that's not necessary at all. Blast it into oblivion and try to rememeber to charge as fully as you can before firing. Just keep running and stay in front of it or it'll come down on you with the pogo hop of d00m. The trick is getting the angle of max damage. But once you get down a good sense of where he's flying, you'll get him easy.
no problem. What sucks is when you're pretty much trapped underneath him and his tail keeps blocking the shots. Tough positioning, but once that's down, it's all good.
I finished a 1% run. I found Ridley to be annoying, but not that bad. As long as he doesn't corner you, then float back and forth tailing you in the process he isn't too hard. Just keep trying. I found Nightmare to be harder in 1%.