Our friends at Format Library have a filterable list of cards that existed during the Yu-Gi-Oh! Goat Format. This can be convenient for deck-building purposes. View their list here: 
​https://formatlibrary.weebly.com/goat-card-pool.html

Some of the cards on their list were forbidden, limited, or semi-limited during Goat Format. These cards were the following.

Chaos Emperor Dragon - Envoy of the End
Fiber Jar
Magical Scientist
Makyura the Destructor
Witch of the Black Forest
Yata-Garasu
Butterfly Dagger - Elma
Change of Heart
Confiscation
Dark Hole
Harpie's Feather Duster
Mirage of Nightmare
Monster Reborn
Painful Choice
Raigeki
The Forceful Sentry
Imperial Order
​

Black Luster Soldier - Envoy of the Beginning
Breaker the Magical Warrior
Cyber Jar
Dark Magician of Chaos
D.D. Warrior Lady
Exodia the Forbidden One
Exiled Force
Injection Fairy Lily
Jinzo
Left Arm of the Forbidden One
Left Leg of the Forbidden One
Morphing Jar
Protector of the Sanctuary
Reflect Bounder
Right Arm of the Forbidden One
Right Leg of the Forbidden One
Sacred Phoenix of Nephthys
Sangan
Sinister Serpent
Tribe-Infecting Virus
Twin-Headed Behemoth
Card Destruction
Delinquent Duo
Graceful Charity
Heavy Storm
Lightning Vortex
Mage Power
Mystical Space Typhoon
Pot of Greed
Premature Burial
Snatch Steal
Swords of Revealing Light
United We Stand
Call of the Haunted
Ceasefire
Deck Devastation Virus
Magic Cylinder
Mirror Force
Reckless Greed
Ring of Destruction
Torrential Tribute

Abyss Soldier
Dark Scorpion - Chick the Yellow
Manticore of Darkness
Marauding Captain
Night Assailant
Vampire Lord
Creature Swap
Emergency Provisions
Level Limit - Area B
Nobleman of Crossout
Reinforcement of the Army
Upstart Goblin
Good Goblin Housekeeping
Gravity Bind
Last Turn

These rulings have been lifted from the 2005-era upperdeck web archive and therefore reflect the rulings from the Goat Format time period. They are listed in alphabetical order, but you can use use ctrl+f to quickly find the card that you want.

Note: Some of the rulings refer to cards as having a "multi-trigger effect." This was the old term for what is now known as a "quick effect", ie a monster effect that is spell speed 2 and can be used on the opponent's turn.

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