Hey, guys, so Gen 1 has finally made it to Pokemon Showdown! By now you can only play it by challenge in a Custom Game, where only the mechanics are enforced, so you'll have to agree on the clauses like gentlemen while playing. You will need to use the Gen 5 teambuilder, as there's no plans to make a Teambuilder for different gens yet. Items and abilities are automatically deleted (shinies too), EVs and IVs are automatically set to max, so either max them or leave them alone. Basically choose six mons and four moves for each of them and you are ready to go. The learnsets have been a lot of work, so I might've had a slip, if you see something wrong with it or with any mechanic, feel free to contact me directly or to post in the Report a Bug thread indicating that it's a Gen 1 bug. I'm constantly trying to improve Gen 1 so we might have at least an OU Ladder available in PS, which is basically my "dream". Have fun! Edit: If you are new to this metagame and wish to learn more, I recommend you to learn this, this, and this.