Atari 7800:Game Incompatibilities

PAL Games with Issues on NTSC 7800

Note that the BIOS on NTSC 7800 consoles must be replaced with a different one that does not perform the encryption check, otherwise no PAL games will even boot. This issue does not apply to flash carts such as the Concerto as they clear the encryption check.

Also note that most PAL games will have the screen shifted down as they were reprogrammed to take advantage of the extra resolution PAL offers over NTSC. Some games that function correctly may also have slightly different colors due to the NTSC and PAL MARIA graphics chips having different color palettes.

Game Title	Issue	Severity
Ace of Aces	Rapidly flickering title screen, major graphical glitching during gameplay	Unplayable
Alien Brigade	Resets every few seconds on title screen	Unplayable
Ballblazer	Major graphical glitching, runs too slow	Severe
Barnyard Blaster	(No further testing performed due to lack of light gun)	?
Baseball	Entire screen flickers	Severe
Basketbrawl	No sound on title screen, plays too slow, major graphical glitching during gameplay	Severe
Centipede	Plays too slow	Moderate
Choplifter	Plays too slow, flickering colors during gameplay	Severe
Commando	Crashes to black screen after title screen	Unplayable
Crack'ed	Flickering colors during gameplay	Moderate
Crossbow	No issues other than the screen being shifted down	Minor
Dark Chambers	Graphical glitching when scrolling vertically	Moderate
Desert Falcon	Plays too slow, major graphical glitching	Severe
Dig Dug	Sound is too fast, gameplay is too slow, top half of screen flickers	Moderate
Donkey Kong	No issues other than the screen being shifted down	Minor
Donkey Kong Junior	No issues other than the screen being shifted down	Minor
Double Dragon	Boots to black screen	Unplayable
F-18 Hornet	Boots to vertical colored bars and droning sound	Unplayable
Fatal Run	Sound is too fast, flashing colors and major graphical corruption	Severe
Fight Night	Flickering colors, crashes when gameplay begins	Unplayable
Food Fight	Flickering graphical glitching, plays too slow	Moderate
Galaga	No issues other than the screen being shifted down	Minor
Hat Trick	No issues	N/A
Ikari Warriors	Flickering graphical corruption, plays far too slow	Severe
Impossible Mission	Flickering colors, crashes to black screen when entering a room (particularly disappointing as this is the only version which can be completed!)	Unplayable
Jinks	Sound samples on title screen are just random noise, major graphical corruption	Severe
Joust	Crashes immediately, only displays copyright info on title screen	Unplayable
Karateka	Boots to black screen	Unplayable
Kung-Fu Master	Crashes to screen with corrupted graphics after title screen	Unplayable
Mario Bros.	No issues other than the screen being shifted down	Minor
Mat Mania Challenge	Corrupted title screen, droning sound during gameplay	Moderate
Mean 18 Ultimate Golf	Graphical corruption when anything moves, glitched sound	Moderate
Meltdown	Sound is too fast (No further testing done due to lack of light gun)	?
Midnight Mutants	No issues other than the screen being shifted down	Minor
Motor Psycho	Boots to black screen	Unplayable