I've got a lot. Like,a lot. I struggled a lot with videogames as a kid, not sure why I ever liked them early on considering all of the time wasting shit I did.
Here's some I can remember for sure doing in Pokemon:
> Trainer uses a cool pokemon, automatically assume it's just in the nearby grass and spend hours if not days looking around for it. Found a trainer using a squirtle and assumed I could fish for it nearby.
>Didn't know about stone evolutions at all. Trained a Pikachu, yes, a Pikachu to level 50 something trying to evolve it.
>My first time beating Gold as a kid, I had a level 32 pidgeotto that only used Fly (had other moves but none were as cool), a Feraligatr that only used Surf and Strength (In GSC, Strength looks like you are hurling a gigantic boulder so I figured it was one of the strongest attacks in the game), and a massively overleveled Ho-oh that was exclusively used once I had found it, since the rest of my team was shit.
>Won most of my battles using hyper potions + revives over and over and over again until the NPCs actually ran out of PP and began to struggle to death
>Gen 4 comes out and I haven't played Pokemon in a while. Try it out, learn about competitive battling and want to try it for myself, use a team of my "best" Pokemon: Blastoise, transferred from my Leaf Green, Venusaur (same story), Charizard (same story), Infernape, Staraptor and of course Lucario. Got destroyed by anyone I could challenge since they knew what EVs/natures/ type matchups were.
I'm better at Pokemon now, but I was complete and utter shit at it for several years.
