I'm not counting remakes or compilations like Genesis Collection individual games on it. If I have 2+ Genesis Collections like PSP and 360 then yeah.
Sonic Adventure DC/GCN
Sonic Generations 360/3DS
Genesis Collection PSP/360
(kinda) Rodea Sky Soldier as it came with both Wii and Wii U
Odin Sphere PS2/PS4 (later sold PS2 copy)
Dragon's Crown PS3/PSVita
Dungeons & Dragon's Mystara/Doom PC/Wii U/ Physical PS3 copy
rain PS3 digital and later PS3 physical
7th Guest PC/Steam
Bayonetta 360/Wii U
Ys Books I&II PC/PSP/DS/PCE CD/Famicom/SMS
Ys III PCE CD/Genesis/SNES
Ys Oath of Felghana PC/PSP
Ys VI PSP/PS2
Super Mario World SNES/GBA
Super Mario Bros NES/GBC
Skies of Arcadia DC/GCN
Aladdin Genesis/SNES
Okami PS2/Wii
The Last Story PAL CE/US Verison
Xenoblade PAL/US (yeah 2 copies different regions)
Resident Evil 4 GCN/Wii (later sold GCN version)
Giana Sisters Twisted Cut Steam/Wii U
Gaurdian Heroes 360/Saturn
Daytona USA Saturn/360
Jet Grind Radio Steam/DC
Wonderboy games SMS/Genesis/360
Grandia Saturn/PS1
Muramasa Wii/PSVita
