No, you don't have to. Its only there to give you an upgrade i think it is when you reach the top. the upgrades for a porygon (found at the slots) and when you make it hold it then trade it it evolves if you didnt know. if you did well meh i told you anyways.
The Dragon Scale is in the trainer tower at the top of island 7. you must beat the trainer tower on doubles or beat it twice. Also there is one located near in ruin valley on six island need surf to get it.
There is no Pokemon colleseum in Pokemon fire red If you are talking about trainer tower it is the place where you select a Pokemon of your choice and battle trainers on every floor. You get a prize if you beat all the trainers
you get a price that's not worth it
get the silph scope and go up the pokemon tower and beat team rocket
Pokemon Tower. Why?You have to beat the Trainers Tower and the guy on the roof top will give you Upgrade.
get Pokemon Lv20-25 with high Att or high Def.
Dark attacks. I suggest something common such as bite which a lot of the early pokemon can learn
First,you have to beat the eilet four next, you get the ruby and he guves you a rainbow pass then you can go to seven island then, keep going up then you surf up again last, go inside and battle for fire red and leaf green.
I think you need to beat trainer tower or defeat all the trainers on every island.
after you beat them your free to do whatever like catch legendary Pokemon and get your trainer card to change color by getting stars, and you can go to the battle tower!
Train pokemon, beat your friends, get all the pokemon.
beat the elite four and the champion.