what is the rarest retro game you have ever owned?

[diet_orange]

Also forgot about this, it's a Canadian copy of Chibi-Robo that I've had for ages. Plays absolutely fine in my NTSC console. Have never seen another copy listed online, so I'm not particularly sure of it's value

I got mine at a close-out reseller store which had hundreds of copies in a big, oversized plastic barrel

 

[ShinnAsukaYESTaylorSwiftNO]

Mega Man Battle Network 6 Cybeast Falzar
Got my copy from EB Games back in circa 2006-2008
Still have it but sadly it's label has been torn off

 

[Megarockman _1987]

Mega Man Battle Network 6 Cybeast Falzar
Got my copy from EB Games back in circa 2006-2008
Still have it but sadly it's label has been torn off

DAAAAAAMN ITS AMAZING

 

[Cu-Neo]

Some of the Transformers games on Xbox 360 (ROTF, the Cybertron Duology and DOTM) and Soul Hackers on the 3DS.