no trainer
Lvl. 100 Fire Pokemon
fire red evolve it.
Your rival will have a Venusaur if you chose Squirtle as your starter.
Unless you have chosen a Bulbasaur or a Squirtle as your starter Pokemon, seeing a Venusaur in Pokemon Red is very difficult. If your starter Pokemon is a Bulbasaur, you will see a Venusaur when it reaches level 36. If you chose Squirtle, your rival will have a Venusaur by the time you reach the Pokemon League. Very few (if any at all) Pokemon trainers will have with them a Venusaur. The closest you will get is an Ivysaur which some Grass-type trainers will carry with them. your best chance of encountering a Venusaur would be to trade or battle with a friend over a link cable.
Bulbasaur cuz it has advantages in some gyms and plus u can defeat the league easily wen it's a venusaur it evolves into a ivysaur in lvl 16 then venusaur in lvl 36 plus I'm a girl and I love pokemon
Sometimes mass outbreaks occur and you should talk to Dawn's sister and she will probebly say so and so are loacated at rout 232 or something sometimes it is Pokemon from hoen, and kanto (fire red).
You have to migrate it from leaf green or fire red to pearl
You take a blastoise and a venusaur to 4 island and wait a long time. Then eventually you get a venustoise egg.
Pikachu, Lapras, Charizard, Blastoise, Venusaur, Espeon.
Any Pokemon 70+. RED'S Pokemon are Pikachu Blastoise Snorlax Lapras Charizard Venusaur
I forgot the levels but here are the Pokemon Pikachu Blastoise Snorlax Lapras Charizard Venusaur