Prototypes by system/NES

1943: The Battle of Midway (Prototype)

A Week of Garfield (prototype)

Advanced Dungeons & Dragons: Hillsfar (Prototype)

Adventure Island III (Prototype)

Adventures in the Magic Kingdom (Early prototype)

Adventures in the Magic Kingdom (Prototype)

Adventures of Dr. Franken (Prototype)

Atlantis no Nazo (Prototype)

Banana (Jun 30, 1986 prototype)

Bashi Bazook: Morphoid Masher (prototype)

Batman (Later Prototype)

Batman (Older Beta)

Batman Returns (PAL prototype)

Batman: Return of the Joker (Prototype)

Bio Force Ape (Prototype)

Bio Force Ape (US Prototype)

Blaster Master (May 20, 1988 prototype)

Block Out (Prototype)

Boogerman: A Pick and Flick Adventure (Apr, 1996 Prototype)

Cadillac (sample)

Caesar's Palace (Prototype B)

Chester Field: Ankoku Shin heno Chousen (Prototype)

Chip 'N Dale: Rescue Rangers (Prototype)

Chuck Yeager's Fighter Combat (Prototype)

Color a Dinosaur (prototype)

Columbus: Ougon no Yoake (Prototype)

Contra (Sample Prototype)

Contra (Test Prototype)

Densetsu no Kishi: Elrond (Prototype)

Dino Hockey (Dec 18, 1990 prototype)

Dino Hockey (Prototype)

Double Dragon (NES prototype)

Double Dragon II: The Revenge (sample)

Double Dragon III: The Sacred Stones (Tradewest prototype)

Dr. Mario (Apr 27, 1990 prototype)

Dr. Mario (Prototype C)

Dr. Mario (Prototype)

Drac's Night Out (Prototype)

Dragon Warrior II (Prototype)

Dreamworld Pogie (Prototype)

DuckTales (Feb 5, 1989 Prototype)

DuckTales (May 25, 1989 Prototype)

DuckTales 2 (PAL Prototype A)

DuckTales 2 (PAL Prototype B)

EarthBound (prototype)

Earthworm Jim 2 (Test Version)

F-1 Race (Prototype)

Final Fantasy (Prototype)

Final Fantasy II (prototype)

Freedom Force (Dec 29, 1987 prototype)

Getsu Fuuma Den (prototype)

Ghostbusters (Prototype)

Gimmick! (Japan prototype)

Global Gladiators (Jul 9, 1993 prototype)

Global Gladiators (Jun 16, 1993 prototype)

Global Gladiators (Jun 30, 1993 prototype)

Global Gladiators (May 28, 1993 prototype - A)

Global Gladiators (May 28, 1993 prototype)

Happily Ever After (Prototype)

Hard Drivin' (Prototype)

Hatris (Prototype)

HeroQuest (May 5, 1992 prototype)

Hit the Ice (prototype)

Hitler No Fukkatsu: Top Secret (prototype)

Ikinari Musician (Prototype)

King Neptune's Adventure (Prototype)

Little Mermaid: Ningyo Hime (Prototype)

M.C. Kids (Prototype)

Magical Doropie (Prototype)

Magician (Mar, 02 1990 prototype)

Makai Island (prototype)

Mega Man 3 (prototype)

Meikyu Kumikyoku: Milon no Daiboken (Prototype)

Metal Max (prototype)

Mike Ditka's Big Play Football (Prototype)

Moero!! Junior Basket: Two on Two (Prototype)

Monster in My Pocket (Apr 22, 1991 prototype)

NES Open Tournament Golf (Prototype)

NES Play Action Football (Prototype)

New Ghostbusters II (USA Prototype)

Nigel Mansell's World Championship Racing (Prototype)

Ninja Gaiden (NES Prototype)

Ninja Gaiden II: The Dark Sword of Chaos (Jan 18, 1990 prototype)

Ninja Gaiden III: The Ancient Ship of Doom (Prototype)

Ninja Hattori-kun (prototype)

Ninja Jajamaru: Ginga Daisakusen (Prototype)

Panic! Dizzy (Prototype)

Parodius (PAL Prototype)

Parody World: Monster Party (Prototype)

Pescatore (prototype)

Princess Tomato in the Salad Kingdom (Jun 30, 1990 prototype)

Probotector II: Return of the Evil Forces (Sample Prototype)

Puzzle (Prototype)

Raid 2020 (Dec 1989 prototype)

Rainbow Islands: The Story of Bubble Bobble 2 (Prototype)

Rampart (Prototype)

Rampart (sample)

Renegade (prototype)

Robin Hood: Prince of Thieves (May 16, 1991 prototype)

Rockin Kats (Prototype)

Saiyuuki World (Prototype)

Sesame Street: Countdown (Prototype)

SimCity (NES prototype)

Ski or Die (Prototype)

Solomon's Key 2 (Fire 'n Ice prototype)

Spiritual Warfare (Prototype)

Square Deal (Prototype)

Stanley: The Search for Dr. Livingston (Prototype A)

Star Force (Prototype)

Star Soldier (Prototype)

Strider Hiryu (Prototype)

Sunman (Early prototype)

Sunman (prototype)

Super C Prototype

Super Chinese 2: Dragon Kid (Prototype)

Super Mario Bros. 2 (prototype)

Super Pitfall II (Localization Prototype)

Superman (NES prototype)

Sweet Home (Prototype)

Sword Master (prototype)

Taro's Quest (Prototype)

Tecmo Bowl (Oct 12, 1987 prototype)

Tecmo Super Bowl (Aug 27, 1991 prototype)

Teenage Mutant Ninja Turtles (Prototype)

Tengen Tetris (Prototype A)

Tengen Tetris (Prototype B)

Tengen Tetris (Prototype C)

Tengen Tetris (Prototype D)

The Bard's Tale: Tales of the Unknown (Prototype)

The California Raisins: The Grape Escape (Prototype A)

The California Raisins: The Grape Escape (Prototype B)

The Goonies II (Prototype)

The Simpsons: Bart vs. the Space Mutants (Prototype)

The Simpsons: Bartman Meets Radioactive Man (Prototype)

The Smurfs (Prototype)

The Three Stooges (Feb 23, 1989 prototype)

Thunder & Lightning (Prototype)

Toki (prototype)

TwinBee 3: Poko Poko Dai Maou (Prototype)

US Championship V'Ball (Prototype)

UWC (Prototype)

Ufouria: The Saga (Early prototype)

Ufouria: The Saga (US prototype)

Ultimate Air Combat (Prototype)

Virus (1989 Prototype)

Virus (Feb 2, 1990 prototype)

Virus (PlayChoice-10 prototype)

War on Wheels (Prototype)

Yo! Noid (Prototype)