Zelda 3000

I've been playing the quest Zelda 3000 by jimbob for a few hours now. It's quite fun but very confusing and hard. There are way too many enemies and there's even an area where it's impossible not to get hit when entering it. There's also a one-way section in Level 2 that leads to a dead-end and it's impossible to backtrack unless you restart. Most items are also unexplained and it's sometimes hard to tell what they do. Despite these flaws, it's still fun. Anyway, this thread will serve as a place where people who are playing this quest can help each other.

Weapons
Cricket Bat (Wooden Sword): Otained from Mido in Kakariko.

Inventory Items
Hoverboard (Raft): Obtained in Level 1.
Forcefield (Magic Shield): Bought in a shop in New Hyrule.
Life Container (Heart Container): Shows how many Pieces of Heart you still need for a full Heart Container.

Equippable Items
Stun Sphere (Wooden Boomerang): Bought in a shop in Kakariko.
Pipe Bomb (Normal Bomb): Bought in a shop in Kakariko.
Pistol (Short Bow): Obtained in Level 1
Bullet (Wooden Arrow): Bought in a shop in Kakariko.
Blue Torch (Blue Candle): Bought in a shop in New Hyrule.
Red Torch (Red Candle): Obtained in the Pirate Hideout (requires Ocarina Modem).
Ocarina Modem (Whistle): Obtained in Level 2.
Bait Bag (Bait): Bought in a shop in New Hyrule.

Life Container Pieces
#1: Held by an enemy in the Park area west of New Hyrule.
#2: At the southeastern area of the Subway, use the Blue/Red Torch on the cracked wood tiles to access this section of the Subway.

Levels
Level 1 (Kakariko Town Hall): Northeastern part of Kakariko.
Level 2 (Sewers): Southwest of New Hyrule and east of Lost Woods (requires Hoverboard).

FAQ
Can you open the green gates?
> I have no idea.
Why can't I bomb the cracked wall blocking the area where the Space Port is?
> A Pipe Bomb upgrade may be needed.
Where's Level 3?
> I have no idea, I will need help on this one.