- The DSi was a seperate system because you couldn't play DSi games on a DS (Lite)
- All PSX systems sold with the original controller should be counted seperately because some games required dual analog input (and we don't know how many people upgraded to a Dual Shock just as we don't know how many people never played a GBC only game on their GBC)
- The PSP Go was a different system because not all PSP games could be played on it and it didn't have a UMD drive
By all means the GBC was probably somewhere inbetween a new system and a remodelling of the black and white Gameboy. And it's questionable which side it was closer to. So we're all right and wrong at the same time. Mindfuck
From what I've read, DSi Ware games aren't compatible with the original DS. Not because DS doesn't have access to the shop, but the games simply aren't compatible. I assume DSi Ware titles have access to the superior processor and RAM found in the DSi. So I would consider it a different platform.
The dual analog control is just a peripheral. I didn't have to buy a newer PS1 to use it. Same story with the Playstation Move.
PSP Go doesn't have a disc drive, but its still compatible with all the games. You just have to hack it to play games off the memory stick.
River City: Rival Showdown for 3DS (3/5) - River City: Tokyo Rumble for 3DS (4/5) - Zelda: BotW for Wii U (5/5) - Zelda: BotW for Switch (5/5) - Zelda: Link's Awakening for Switch (4/5) - Rage 2 for X1X (4/5) - Rage for 360 (3/5) - Streets of Rage 4 for X1/PC (4/5) - Gears 5 for X1X (5/5) - Mortal Kombat 11 for X1X (5/5) - Doom 64 for N64 (emulator) (3/5) - Crackdown 3 for X1S/X1X (4/5) - Infinity Blade III - for iPad 4 (3/5) - Infinity Blade II - for iPad 4 (4/5) - Infinity Blade - for iPad 4 (4/5) - Wolfenstein: The Old Blood for X1 (3/5) - Assassin's Creed: Origins for X1 (3/5) - Uncharted: Lost Legacy for PS4 (4/5) - EA UFC 3 for X1 (4/5) - Doom for X1 (4/5) - Titanfall 2 for X1 (4/5) - Super Mario 3D World for Wii U (4/5) - South Park: The Stick of Truth for X1 BC (4/5) - Call of Duty: WWII for X1 (4/5) -Wolfenstein II for X1 - (4/5) - Dead or Alive: Dimensions for 3DS (4/5) - Marvel vs Capcom: Infinite for X1 (3/5) - Halo Wars 2 for X1/PC (4/5) - Halo Wars: DE for X1 (4/5) - Tekken 7 for X1 (4/5) - Injustice 2 for X1 (4/5) - Yakuza 5 for PS3 (3/5) - Battlefield 1 (Campaign) for X1 (3/5) - Assassin's Creed: Syndicate for X1 (4/5) - Call of Duty: Infinite Warfare for X1 (4/5) - Call of Duty: MW Remastered for X1 (4/5) - Donkey Kong Country Returns for 3DS (4/5) - Forza Horizon 3 for X1 (5/5)