My first true gaming experience was watching my cousins play the original Super Mario Brothers. I mostly jumped up and down watching them play and was in love. Took a few years to get my own system, the one that had SMB3 packed in the box. I remember carrying it out of the store in a paper bag while thanking my Mom for buying it, as she was against me getting one for the longest time. Between the initial experience and the purchase of the system my Dad would rent the NES with some games occasionally, typically when family visited so all the cousins could play together. Played a lot of Mario, Zelda, Bomberman, and Ducktales this way.
I had most of the classic Capcom Disney games as my parents preferred those titles over unlicensed games that were "unknown" to them, but thankfully the Capcom games were all clones of quality titles like Castlevania, Metroid, Mega Man, and the like.
I also had all of the old unlicensed Bible-themed games because my Dad worked part-time at a Christian bookstore and they gave him a discount on them. They were entertaining but of varying degrees of poor quality. Though the true highlight was the blatant Zelda clone called Spiritual Warfare. It had you traveling the world fighting demon possessed people to reclaim classic Biblical artifacts that doubled as the game's "tools". Game ended with you storming Hell and kicking Satan's Ass.
All these would constitute as my earliest gaming memories. Good times were had all around.
Sadly I was forced to sell all of my games when I got an SNES because Mom felt I only needed one system. All of