This Slingshot looks like a kid's toy, but it can stun enemies and even take out some small fry such as Keese. The Kikwi elder, Bucha, gives you this Kikwi heirloom to use against monsters as you hunt down the missing Kikwi. Its seeds don't fly very far, but they're strong enough to strike certain switches.
Find out more at Zeldapedia: Slingshot
4 - Use the Slingshot to cross the Deep Woods and enter Skyview Temple.
Follow Bucha's instructions and shoot down the curled vine nearby with your Slingshot, then head back to the viewing platform area. Nearby the Bird Statue is another curled vine. Shoot it down, then grab onto it and use it to swing onto the cliff at the beginning of the path leading to the Deep Woods. As you pass into the area, a mysterious figure will materialize behind you. It's clear you're being followed...
Fight off the Bokoblins here and shoot down the hornets' nest with your Slingshot if you wish to collect some Hornet Larvae (watch out for the hornets themselves, they'll sting you!), and then continue on the path towards the temple. A tightrope spans the nearby gap, but before you cross you should knock down the Hornets' Nest hanging above it to avoid getting stung. Cross carefully and cut left to push down a log to form another shortcut, then head back along the path and continue until you reach another tightrope.
This one's plagued by sticky traps and a Bokoblin will try to knock you off as you cross. You can shake the Wii Remote to jostle the rope, which will tip off both the stickies and the Bokoblin. This might cause you to lose your balance, forcing you to hang onto the rope with your hands, but it's all right - you can still shake the rope while you're holding on. Just watch your stamina and climb back onto the rope with the Control Stick when you get the chance.
Climb up the plateau here to reach a Bird Statue as well as another rope you can use to swing across to the upper ledge. Look out for Quadro Babas, golden enhancements of the normal Deku Baba, and make your way to Gorko, who's found what he calls a Goddess Cube. Follow his instructions to unlock the Goddess Cube and send its power to the sky with a Skyward Strike. Be on the lookout for other Goddess Cubes as you quest across the surface.
This gold colored Deku Baba is more durable than its blue cousin and also possesses the ability to open its mouth in multiple directions. Pay close attention to these dynamic changes as you fight. It's still got all the other vulnerabilities, too...
Find out more at Zeldapedia: Quadro Baba.
Head down the ledges towards the temple, being sure to push the log at the very end to create a shortcut, and you'll fine the entrance as well as a second Goddess Cube. The entrance is sealed for now, but if you shoot your Slingshot at the crystal switch above the doors, you can unlock them. Proceed inside to enter your very first Skyward Sword