Holy crap i seriously didnt know it was released Gen 7...and didnt know about the MS Dos etc...thanks!

Off the top of my head

SNES - Plok
PS1 - Alundra
Saturn - Burning Rangers or Deep Fear
N64 - Beetle Adventure Racing
Gamecube - Paper Mario: The Thousand Year Door
DS - Hotel Dusk or Last Window
3DS - A Link Between Worlds

I do not see what the point of this comment is.  I have been playing games since the colecovision, so when these games were released you needed the console they were released on.  Pretty simple concept to understand really.

You also forgot Four Swords Adventures BTW.

EDIT: For some reason I took the topic of this thread as "what true exclusives made you buy a console".  After double checking the OP, I can see why your response is what it is.  I must have made my initial reply half asleep in bed or something lol.

The original Splatoon, how could I forget. Excellent game. Still one of my favourite final boss fights of all time.

Well, I didn't know about the C64 and MS-DOS ports either.  But I knew about the 360 and PS3 versions.  Unfortunately, both versions were delisted rather quickly and I missed out on both of them.  The same thing happened with the X-Men arcade port even though that one was available a bit longer. 

I had the MS-DOS version. It was pretty clunky even with a 286 or 386 CPU, had the gameplay pared down somewhat including having part of level 3 removed, and had very sparse sound even with the best sound cards available - and I had the PC Speaker, which typically sounded like a cat orgy. I still played it quite a bit, because it was kind of hard to scrounge up quarters, or rides to the arcade.

Sadly the downside of digital-only games and why I always prefer physical.  I knew about X-men but Simpsons I was not aware of at all.  I'm pretty shocked that I missed it.  I definitely don't want to buy a Arcade 1up just to play these games.

I pretty sure that Konami will re-release both games eventually, hopefully they will re-release all the Castlevania DS games also eventually.  I used to be big on physical games, but I prefer digital now they are more convenient.  

Advanced V.G. 2.

By far the best game in the franchise, I don't understand why its a PS1 exclusive while the first one came to PC and Saturn too.;

Dreamcast:
Slave Zero
Berserk gut’s rage
Seaman

Xbox:
Bloodwake
jet set radio future
Gunvalkrie
Brute force
Munch’s oddysee
Otogi
Dead or alive 3
Steel battalion

GameCube:
Metroid Prime 1 & 2 (Dual analogue controller)
Luigi’s mansion
Wave race blue storm
Ultimate Muscle

PlayStation 2:
Rygar the legendary warrior
Berserk millennium falcon arc
Galactic wrestling ultimate muscle
Altered beasts

3ds:
Pilot wings resort
Luigis mansion dark moon
Super Mario 3D Land