Zelda Skyward Sword is only for the Wii platform no others. With this said there is no way to compair the game graphics on another platform. Many of the game designers have quit making games or have limited their games for the Ninendo platform because so many players want the on-line experience with high graphics. What is lost is game content. C.O.D. Black Ops is a good example, more graphics but a poor game. The Wii's graphics are very good and the Wii can also play the older GameCube disks as well. Graphics are not everything, content is. Skyward Sword has content and will give you at least 80 hours of play to complete the game.
I have played the game a number of times as well as writing a walkthrough and I do not recall any multicolored flying squirrels, birds yes, but squirrels no. Perhaps you are talking about the skydivers over Pumpkin Landing. When over Pumpkin Landing Link can drop off of his loftwing and dive with the skydivers. If they all link-up Link will receive some rupees.
Nearby are two Peahats. Get on a lily pad and equip the clawshots. Use the Peahats to get the pathway above. Walk out onto the overhang and jump onto the lily pad with the Tadtone. It will flip over and Link is now able to catch the little guy. For details see section #45 Song of the Hero in the walkthrough by az47.
When Link finds the first Kikwi, Fi will add the Kikwi to ths dowsing list. For details read the walkthrough by AZ47, section #9 The Faron Wooods. Have fun.
Yes Link must attack the beasts toes but in this battle it will crawl along the path while growing new toes. Also in this battle the electrical pulses sent out are much stronger each time the beasts feet hit the ground. See section #20 of the walkthrough by az47.
If you are referring to Rupees, then you can carry far more than 30 because one of your first purchases will be an Extra Wallet that costs 100 Rupees. Rupees can be found everywhere. Run/dash into certain trees and Rupees will fall to the ground. Slice up pumpkins and Rupees appear. Help-out others and they will pay Link with Rupees. For details of the game, read the walkthrough by az47. Have fun.
As the other person said there are far to many to list here. Try reading the walkthrough by az47, it lists the crystals in the side-quests. Have fun.
I do not recall any "rails" in SkyView Temple. If you mean "bars" like those that block doorways then there are many. For details on how to open each one read the walkthrough by az47. Have fun.
Obviously you do not need to check the map to see where your gear is because you already have them. To get this far Link had to have used the bomb flowers to blow up some other boulders. Sooooo, pick up a bomb flower and blow up the boulders. If Link wishes to stock up on bombs all he needs to do is to pick up the bomb flower and put the bomb in his bomb bag. For details of this part of the game see az47s walkthrough section #46 Song of the Hero - Fire Dragons Part. Have fun.