1943 Must completely destroy final battleship to beat the last level.
10 Yard Fight Win the Super Bowl
720* Finish class 4
Advanced Dungeons & Dragons: Hillsfar Finish the game with one of the characters
Adventures of Dino Riki Loops after level 4-4
Air Fortress Similar to Ghosts 'n Goblins game must be played through twice to reach the credits.
All Pro Basketball Must play 35 games and beat each team 3 times
Alpha Mission Loops after area 12 (area 13 is just area 1 again)
Anticipation Win a game versus the computer
Arch Rivals: A Basket Brawl! Win a single game
Archon Win or draw versus the computer (same credits sequence either way).
Arkanoid Must beat without using continue code. Warp code allowed (mentioned in manual). Probably impossible to beat without a Vaus controller.
Arkista's Ring Must complete four loops to get to the ending.
Athletic World Obtain a degree for finishing a round with a good enough score
Balloon Fight Beat the high score in both 1 player and balloon trip modes
Bandai Golf: Challenge Pebble Beach Complete 18 holes of golf
Bandit Kings of Ancient China Finish scenario 4 to get the ending
Barker Bill's Trick Shooting Play and beat each event, including the special ones in Fun Follies mode (stage 4, 5, 9)
Base Wars - Cyber Stadium Series Win pennant mode
Baseball Win a single game
Baseball Simulator 1.000 Play and win a season. The shortest is 5 games.
Baseball Stars Win a league
Baseball Stars II Win a league
Bases Loaded Must win 80 games
Bases Loaded II: Second Season Must win 75 gamesn the World Series
Bases Loaded III Beat a level 5 team with a rating of 100.
Bases Loaded IV Must win 70 gamesn the Super Series
Battle Chess Win a single game
Bill Elliott's Nascar Challenge Play and win the Championship Season
Black Bass Be ranked #1 at the end of September 25
Blades of Steel Win a tournament
Bo Jackson Baseball Beat the playoffs mode
Bram Stoker's Dracula Must play on hard difficulty to play the full game.
Break Time: The National Pool Tour Win the national pool tour
BreakThru Loops after level 5
Bubble Bobble Beat the game with the good ending. Not necessary to do second quest.
Burgertime Loops after stage 6
Caesar's Palace Must have $140,000 to leave in the best car.
California Games Set a new world record in each event
Casino Kid Must win $2 million.
Caveman Games Compete in the caveman games and set records in each event
Championship Bowling Complete a game of bowling and beat the high score
Championship Pool Win either the 8 ball or 9 ball tournament (not necessary to do both)
Chessmaster Win a single game
Chubby Cherub Loops after stage 12
City Connection Loops after stage 6
Classic Concentration Win a single game and win the bonus round at the end.
Clu Clu Land Loops after stage 21
Commando Beat stage 4-4
Conflict Must beat all 15 maps to reach map 16 to complete that one
Crash 'n the Boys: Street Challenge Win first place as Southside for the ending
Cyberball Win a single game
Dance Aerobics Beat all modes
Defender II Loops after stage 1
Dig Dug II Loops after stage 72
Donkey Kong Loops after stage 3
Donkey Kong 3 Loops after stage 4
Donkey Kong Jr. Loops after stage 4
Double Dare Win a game versus the computer
Double Dragon II: The Revenge Must play on Supreme Master difficulty to finish the entire game
Double Dribble Win a single game
Dr. Mario Complete virus level 20
Dragon Spirit: The New Legend Intro stage must be completed without dying to play as the blue dragon, which allows you to play all stages.
Duck Hunt Loops after stage 1. So just beat at least one round and the high score for each mode.
Elevator Action Loops after stage 4
Evert & Lendl Top Player's Tennis Must win all tournaments to get the ending (add more details) rank 12 after asmik, rank 8 wimbledon
F-15 Strike Eagle Complete all 7 missions
Family Feud Must win $20,000
Flying Dragon: The Secret Scroll Similar to Ghosts 'n Goblins game must be played through twice to reach the credits.
Flying Warriors Play on expert difficulty to get the true final boss fight
Galaga Loops after stage 3
Galaxy 5000 Beat Pluto without continuing to get to the final race - Planet X. Win that race to get "The End:"
Gauntlet II Consider beating stage 100 as finishing it.
Gemfire Beat scenario 4 to get the ending
Genghis Khan Choose "World Conquest" and take over the map
Ghosts 'N Goblins Must be played through twice to reach the credits.
Goal! Win a World Cup
Goal! Two Win a Super Cup
Golf Beat the default score (+28)
Golf Grand Slam Get the best score after 18 holes.
Gotcha! Loops after stage 3
Greg Norman's Golf Power Play 18 holes of golf
Gyromite Must beat Game A & B
Harlem Globetrotters Win a single game
Hatris Beat level 9-5
High Speed Beat the high score
Hogan's Alley Loops after stage 1. So just beat at least one round and the high score for each mode.
Hollywood Squares Win a game versus the computer
Hoops Win 15 games
Ice Climber Beat all 32 stages.
Ice Hockey Win a single game
Isolated Warrior Must beat first 6 stages without continuing to reach final stage.
Ivan "Iron Man" Stewart's Super Off-Road Get to race 36 (race 35 is the eighth and final new race)
Jack Nicklaus' Major Championship Golf Play 18 holes of golf
James Bond Jr. Similar to Ghosts 'n Goblins game must be played through twice to reach the credits.
Jeopardy! Win a single game
Jeopardy! 25th Silver Anniversary Edition Win a single game
Jeopardy! Jr. Edition Win a single game
John Elway's Quarterback Win a single game
Jordan vs. Bird: One-on-One Beat the computer in each mode
Joust Finish wave 16
Karate Champ Loops after round 10
Kick Master Complete the game once.
Kickle Cubicle Special stages not necessary
Kings of the Beach Win a tournament
KlashBall Win the league
Lee Trevino's Fighting Golf Win a nassau game vs the computer
Legend of Kage Ending appears after 3 loops
Legends of the Diamond Tournament mode
Lemmings Start on hardest difficulty to reach the credits quicker (you're only required to do the final 25 stages)
L'Empereur Beat scenario 4 to get the ending
Little League Baseball: Championship Series Win a championship series
Lode Runner Complete all 50 stages
LoopZ Get a high score on Games A & B, and clear Game C
Lunar Pool Beat the game on a single credit to get the ending screen
M.U.L.E. Beat the computer opponents on normal.
M.U.S.C.L.E. Loops after stage 4
Mach Rider Loops after stage 10
Magic Darts Complete each game of darts
Magic Johnson's Fast Break Win a single game
Magician Complete the game once.
Magmax Loops after second boss; there's a brief transition period and then you return to stage 1
Major League Baseball Win a single game
Mario Bros. Loops after phase 18
Mighty Bomb Jack Any ending is fine.
Millipede Loops after round 16
Monopoly Beat a computer opponent in a single game
Monster Truck Rally Finish monster truck rally mode with the highest total score, vs at least 1 cpu opponent
Ms. Pac Man Loops after stage 13
NES Open Tournament Golf Win $1 million
NES Play Action Football Win the playoffs mode
NFL Football Win a single Super Bowl game
Ninja Kid Loops after stage 8
Nobunaga's Ambition II Choose the scenario "Nobunaga's Ambition" and take all territories
Operation Wolf Loops after you've completed all 6 missions
Othello Beat level 4 to unlock level 5. Then beat that.
Overlord Play on the hardest difficulty to get an actual ending screen.
Pac-Man (Namco) Loops after stage 1 (and beat high score, of course)
Palamedes Win a tournament to get the credits
Pictionary Finish a single game
Pinball Get 200,000 points for the flippers to disappear then reappear
Pinball Quest Finish RPG mode
Pinbot Beat the high score of just under 10 million
Pipe Dream Loops after stage 16 on game B
Pirates! Retire with the highest rank of King's Advisor
Popeye Loops after level 3
Pro Sport Hockey Win a Super Cup
Puzznic Clear Puzznic and Gravnic
Qix Must beat high score of 100,000 points
R.C. Pro-Am Loops after level 24
Race America Best ending is not necessary
Raid on Bungeling Bay Just need to beat round 1 of game B
Rally Bike Game ends after playing each stage twice
Rampage Loops after 128 stages
Rampart After you see a screen saying "you won the war," you'll start a new level where a single enemy ship approaches waving the white flag. After this you'll get a "The End" screen saying you completed the game
RBI Baseball Finish the season with a 9-0 record
Remote Control Win a single game
Rescue: The Embassy Mission Beat mission Jupiter
Ring King Beat the world #1
Rock 'n Ball Beat all modes. Specifically: Mode 1: Beat the high score. Mode 2: Get at least the final secret code. Modes 3 & 4: Beat all the sub-modes. Feel free to use the codes once you've unlocked them.
Roger Clemens' MVP Baseball Pick an NL team (they play 6 fewer games)
Rollerball Get 1 million points to get the credits
Rollerblade Racer Get 5000 points to compete in the final race, after which you get the credits for a third place or better finish (10,000+ points)
Romance of the Three Kingdoms Win the fifth scenario
Romance of the Three Kingdoms II Win the sixth scenario
Roundball: 2 on 2 Challenge Win the tournament
Seicross Loops after level 6
Sesame Street: 123 Beat each game in each of the two modes
Sesame Street: ABC Beat each game in each of the two modes
Sesame Street: Big Bird's Hide & Speak Beat all 6 levels
Sesame Street: Countdown Finish each mode
Shooting Range Get 40,000 points to win the gold medal
Short Order/Eggsplode Complete a 10 story burger on short order and 60 bomb round on eggsplode
Side Pocket Must get 7,100 points to get the final trick shot to appear, which leads to the credits
Skate Or Die Compete in all events
Ski Or Die Compete in all events
Sky Kid Loops after mission 26
Sky Shark Loops after stage 5
Slalom Beat all 8 races on each of the 3 mountains
Snoopy's Silly Sports Spectacular Go through "1 play total game" and win a medal
Soccer Win a single game
Solomon's Key Continue code is fine to use, since it's on the poster that came with the game
Spot Win a game versus the computer
Spy Hunter Get to the loop point (after each season, ~15 minutes?)
Spy vs. Spy Beat the computer on any level
Sqoon Loops after phase 8
Star Trek: The Next Generation Achieve the rank of Captain
Stealth ATF Loops after stage 8
Super Dodge Ball Win world cup play
Super Jeopardy! Win the finals (three games)
Super Spike V'Ball Win a World Tournament
Super Team Games Win all 4 events in 1 player mode
Tag Team Wrestling Must beat the champions' mark of 35 victories
Tecmo NBA Basketball Complete a season and win the NBA Finals.
Tecmo Super Bowl Complete a season and win the Super Bowl.
Teenage Mutant Ninja Turtles: Tournament Fighters Playing on normal is fine (even though the credits are only on hard)
Tennis Win two matches on any difficulty to win the trophy
Terra Cresta Get to the loop point (third boss?)
Tetris Beat 9-5 on B-type, and the high score on A-type
Tetris 2 Start on level 30 (to make it faster). Keep playing until you reach "The End" and the game goes back to the title after level 80
Three Stooges Get at least $5,000 to get the worst ending. You can deliberately game over once you have the money and you'll still get the ending.
Tiger-Heli Loops after stage 4
Touchdown Fever Play and win a tournament.
Town & Country Surf Designs Finish stage 10 of wood and water rage
Track & Field Compete in all events and beat the high score
Track & Field II Play Olympic Mode and reach the closing ceremony after the 8th day
Ultimate Basketball Win the tournament
Urban Champion Loops after 3rd fight.
Vegas Dream Must win $10 million
Volleyball Win a single game
Wario's Woods Finish 100 rounds of Game A or B
Wayne Gretzky Hockey Win a game versus the computer
Wheel of Fortune Win a single game
Wheel of Fortune: Family Edition Win a single game
Wheel of Fortune: Featuring Vanna White Win a single game
Wheel of Fortune: Jr. Win a single game
Where in Time is Carmen Sandiego? You must complete all 80 cases until you're retired. It's not enough just to catch Carmen.
Wild Gunman Loops after stage 1. So just beat at least one round and the high score for each mode.
Win, Lose or Draw Finish a single game
Winter Games Compete in all events
World Champ Compete in all events and get the gold medal in each
World Class Track Meet Win the tournament
World Games Set a new world record in each event
Wrecking Crew Beat all 100 stages.
WrestleMania Win a tournament
WWF King of the Ring Win either the WWF Championship or the King of the Ring tournament
WWF Wrestlemania Challenge Select "yourself" and defeat all the other wrestlers
WWF Wrestlemania: Steel Cage Challenge Win the WWF Championship
Xenophobe Loops after stage 8
Xevious Loops after stage 16
Yoshi Beat level 16 on Game B (to get the pineapple final fruit)
Yoshi's Cookie Beat round 10, stage 10