||[[Jack The Nipper II In Coconut Capers]]|| 1986 || Gremlin Graphics Software ||No|| Converted by Phantomz<br/>(Joystick Fire 1 = yes) (Joystick Fire 2=no) For Trainer.<br/>Quit Button is Joypad 2 UP with Yes or No, on Joypad 2 Button 1 for Yes Button 2 for No || [[Media:Jack The Nipper II In Coconut Capers.rar | Jack The Nipper II In Coconut Capers.rar]]
|-
||[[Jackal]]|| 1988 || Konami ||No|| Converted by Phantomz<br/>J1UP = Swap main screens, J1B2 = Pause (J1B1 = Resume), Pause button = Quit game) || [[Media:Jackal.rar | Jackal.rar]]
|-
||[[James Bond - Licence To Kill]]|| 1989 || Domark || No || Converted by dragon || [[Media: James Bond - Licence To Kill.rar | James Bond - Licence To Kill.rar]]
||[[Jarlac]]|| 2018 || cpcretrodev.byterealms ||Yes || Converted by Devilmarkus and Ayor61 (Plus colours)<br/>Pause button = Quit game || [[Media:Jarlac.rar | Jarlac.rar]]
|-
||[[Jet Bike Simulator]]|| 1988 || Codemasters Software || No || Converted by Phantomz<br/>J1B2 = Pause with Joypad 1 Fire 2(J1B1 to resume), Unpause with Joypad 1 Fire 1<br/>Pause button = Quit with console pause button<br/>game, J1B1 = Replay with Joypad 1 Fire 1<br/> CHEAT MODE (skip to next level if you lose)<br/>To activate, : first view credit screen, then enter the name of first player "XXXXXXXX" (use fire 1x8),The cheat is now activatedpressing J1B1 eight times. || [[Media:Jet Bike Simulator.rar | Jet Bike Simulator.rar]]
|-
||[[Jet Set Willy]]|| 1984 || Software Projects || No || Converted by Urusergi<br/>J1B1=Start, J1UP/DN=Colour/Monochrome<br/>Green, J1B2=Pause & Music On(turns music on/Offoff resuming game), GX4000 Pausebutton =Exit. Quit game || [[Media:Jet Set Willy.rar | Jet Set Willy.rar]]
|-
||[[Jet Set Willy - The Final Frontier]]|| 1985 || Software Projects || No || Converted by Urusergi<br/>J1B1=Start, J1UP/DN=Colour/MonochromeGreen, GX4000 Pause=Hiscore<br/>J1B2=Pause & Music On(turns music on/Offoff resuming game), GX4000 Pausebutton =Exit. Quit game || [[Media:Jet Set Willy - The Final Frontier.rar | Jet Set Willy - The Final Frontier.rar]]
|-
||[[Jewel Warehouse(v1.1)]]|| 2016 || EgoTrip || No || Converted by Phantomz<br/>version 1.1<br/>Joypad 1 Button 2 J1B2 = Pause (J1B1 to resume), Pause, unpause with Joypad 1 Button 1<br/>button = Quit game with Console Pause Button || [[Media:Jewel Warehouse.rar | Jewel Warehouse.rar]]
|-
||[[Jinks]]|| 1988 || Rainbow Arts ||No || Converted by iXien || [[Media:Jinks.rar | Jinks.rar]]
|-
||[[Joe Blade]]|| 1987 || Players || No || Converted by Phantomz<br/>Pause with Console button = Pause Button, Press Console (Pause Button Whilst Paused button again to Quit<br/>Any quit game, any other button to Unpause resume game) || [[Media:Joe Blade.rar |Joe Blade.rar]]
|-
||[[Joe Blade 2]]|| 1988 || Players || No || Converted by Phantomz<br/>Press Button 2 J1B2 for Controls, Select and select Joystick / pad 1 or 2 controls before you start<br/>, Pause with Console button = Pause Button|| [[Media:Joe Blade 2.rar |Joe Blade 2.rar]]
|-
||[[Joe Blade 3]]|| 1989 || Players Premier || No || Converted by Phantomz<br/>J1B2/J1B1=Pause/unpause(J1B1 to resume game). Computer On computer screen : J1B1/B2/UP/DN=1,2,3,4 || [[Media:Joe Blade 3.rar |Joe Blade 3.rar]]
|-
||[[Jonny Quest]]|| 1991 || Hi-Tec Software ||No || Converted by Urusergi<br/>J1 D-Pad = up/down/left/right<br/>J1B1 = Fire<br/>J1B2 = Select object<br/>, Pause button = Pause<br/>CHEAT: J1 Up J1UP to activate Infinite lives (second level and successive) and energy. || [[Media:Jonny Quest.rar | Jonny Quest.rar]]
|}