>>42028124>This is your brain on GF shillingHoly fuck you are genuinely retarded.
(Note: In gen 1 I am not counting glitches like Mew Glitch/Missigno. Item duplication, so shut the fuck up about that before you say it. I'm listing what would be intended by the devs to complete the dex.
In gen 1, you need to either own 2 games or know at least 2 other people who are willing to trade/tradeback version exclusives, the Hitmon you didn't choose, the fossilmon you didn't choose, and the other 2 starters.
Your only choice of grinding is going through the E4 over and over or 1 at a time in the daycare. There's also no breeding, so you can't just have someone breed a Bulbasaur/Charmander/Squirtle/Hitmon/Fossil for you.
In gen 8, You can easily tradeback version exclusives online. You can also Surprise trade which will probably give you a Dreepy/Starter breedjects most of the time.
You can just go to the digging guys outside of the daycare and get the fossil pieces easy as well.
You can just bring Zacian/Eternatus and UNGA BUNGA through almost all raids, giving you EXP candies and essentially nullifying any grind you would otherwise have to do.