Title says it all, what was the first game you remember playing and had fond memories of?
For me it was the PS1, and hearing the OG Crash Bandicoot theme song never gets old for me, got it as my ringtone too!
Jump Man, Space Taxi, and Ghostbusters on Commodore 64. I was using that version of the Ghostbusters song as my ringtone for years, back when I got phone calls ;)