Yay, people are thinking about the Screw Attack skip again (and how hideous it would be). Note that if you can do Hive Temple w/o SA, you can do Sanctuary Temple w/o SA (and SG reached with a Roll Jump), and thus concurrently skip Grapple. (There is also that room with the Phazon pit, but that's solved and on the main page.)
Here's an idea (which I wouldn't bring up if I thought it sucked) for climbing great heights: Stacked BS Jumps (IBSJ) and bomb jumps stacked on BS Jumps.
1. Do a bomb jump where you would have a spare at the end (eg single bomb jump).
2. At (or near) the height of the jump plant the last bomb, and then go into a BS Jump.
3. Morph and get propelled by the last bomb as you're falling (note control stick maddness requred to get a good camera angle back)
4. Set bombs again so you would have a spare (eg single or double)
5. Repeat 2-4 as you like/can.
6. Do any bomb jump you can at the height of the stack (eg when the camera goes bad like at the top of the shaft before Ing Emp)
Again this is only HYPOTHESISED. I've been trying this for a while and barely have the skill to get (2) right. For (3), I've always been too high or too low to get propelled by the set bomb. Sorry to have to leave this to those cursed with skill...
Here's an idea (which I wouldn't bring up if I thought it sucked) for climbing great heights: Stacked BS Jumps (IBSJ) and bomb jumps stacked on BS Jumps.
1. Do a bomb jump where you would have a spare at the end (eg single bomb jump).
2. At (or near) the height of the jump plant the last bomb, and then go into a BS Jump.
3. Morph and get propelled by the last bomb as you're falling (note control stick maddness requred to get a good camera angle back)
4. Set bombs again so you would have a spare (eg single or double)
5. Repeat 2-4 as you like/can.
6. Do any bomb jump you can at the height of the stack (eg when the camera goes bad like at the top of the shaft before Ing Emp)
Again this is only HYPOTHESISED. I've been trying this for a while and barely have the skill to get (2) right. For (3), I've always been too high or too low to get propelled by the set bomb. Sorry to have to leave this to those cursed with skill...