Factual error: During this game, your mech is carried around from world to world by a Titan class DropShip. Titans are strictly aerospace fighter carriers.
Factual error: When you hit an enemy plane with your gun, you can sometimes hear the enemy pilot say: "Damn! My plane's been Swiss-cheesed!" In the Strangereal world (the world where the Ace Combat Series takes place) there is no country of Switzerland.
Plot hole: In the level A Show of Force, Bond has to drive the Q-Bike. It seems that this bike came from nowhere, as it wasn't there the first time he went to the safe house, and 003 was already captured. No one could have put it there.
Bug: Bot Boneyard: Pac-Man lands in the pit and he takes a look around. The shot cuts to what Pac-Man can see. As the shot pans around, the black paint on the walls disappears from shot.
Continuity mistake: When going to the Gotham City Bank, the clock tower bell will begin to ring. Alfred then contacts Batman and says that it's now 12:00 AM and wishes him a merry Christmas. If you look at the clock tower, however, the clock says that it's only 9 o'clock.
Other mistake: In the Big section of the Special Book, the first clue to find Big spells "pillar" "pilalr".
Other mistake: Anybody hit by the Killing Curse died immediately. If the player uses the Killing Curse on Harlow, he still lives.
Factual error: Poison's "Nothin' but a good time" is labeled "Ain't Nothin but a good time".
Factual error: Whenever you fly a damaged helicopter where the tail is bent, you can fly just fine. This is impossible, in a real helicopter, when this happened the helicopter would spin out of control and eventually crash.
Continuity mistake: After defeating Blane, Bill will appear and ask you to go to the Sevii Islands. Answer no. He'll then go to the Cinnabar's Pokemon Center and will wait for you there. However, if you fly to his house in Route 25, he'll also be there. He's in two places at the same time.
Factual error: When you reach the champion in Pokemon Gold, you have to defeat his Pokemon. His 4th one, Aerodactyl, knows the move Rock Slide. Aerodactyl cannot learn this move, and it does not appear as a TM in this generation.
Bug: There are two ways to perform this glitch. When the glitch is performed, the game can't progress, regardless of the fact all windows on the current floor have been fixed. Ralph will continue to throw bricks and Felix can still be moved, but the game will stay on the current floor. One way of performing this glitch is to 'die' just as the last window on the floor is fixed. The second way to perform the glitch is to press the fix button on a window and have Ralph destroy the window whilst it's being fixed.
Other mistake: When entering Final Fortress as Team Sonic, Sonic will say "This must be Eggman's headquarters!" however the subtitles make a typing error and leave out the 'be,' reading "This must Eggman's headquarters!"
Plot hole: Level Five: After finishing the mission to defeat The Dirty Bubble atop the Sea Needle, the game completes, the Dirty Bubble is stopped and Bikini Bottom is saved from the little dirty bubbles infecting them. After saving the day, the game lets you go back to Bikini Bottom to finish off some other missions, but despite this the citizens are still infected by the little dirty bubbles and if you go back to the Sea Needle, the Dirty Bubble is still waiting there and reading to be battled again.
Continuity mistake: In the ending cutscene of the G5-Building level, you will see you have come out of a plain wall, which you blew down before completing this level.
Other mistake: Starting a new game, the description for the Fiction mode says... well, exactly that. "This is the description for the Fiction mode." Nothing else at all. Placeholder text at the very beginning of the game.
Other mistake: In the opening sequence, Dr. Wily's name is misspelled Dr. Willy with two L's. This mistake is carried over to Mega Man Legacy Collection 2.
Bug: A very annoying glitch occurs often with the Medic. Half the time the secondary fire medical dart, when fired at a team mate, won't make contact with the player and just phase right through them without healing. This is doubled when then players are moving around, especially jumping, which is almost always.