I am in Fire Red which is almost identical. I beat the Pokemon League 3 times so far and nothing bad has happened.
Unlike Ruby, Sapphire, and Emerald, FireRed and LeafGreen don't react to time.
I believe firered leafgreen is better then ruby Sapphire because the graphics are better and you are able to play the classic original Pokemon with the first 150. The challeneges and towns are great and the Pokemon are original unlike the newer ones who seem like they were rushed.
yes, but only a shining one, unlike silver, gold, and crystal
Unlike Suicune, this particular legendary dog will NOT challenge you. Roaming around in the game randomly, like me, you should eventually encounter Raiku.
It lets you attack first (unlike extreme speed, counter, and quick claw). If you or the opponent is paralyzed, it goes down 75%.
no unlike Celtic who have twice
Unfortunately, you cannot. The only way to get a charmander in Emerald is to trade with another player. However, I do recomend captureing a Growlithe, since its evolved form is slightly more powerful than charizard. (By 25 in base stat average) And Growlithe is obtainable in Emerald version, unlike charmander.
Yes Liverpool has won more trophies and is in the Barclays Premier League, unlike Leeds who are in the Championship league below the BPL.
You can't naturally obtain jolteon in emerald. First you would have to get an eevee. Unlike other games an eevee isn't given to you. Trade with a friend to get an eevee or jolteon. Keep in mind you need a thunder stone to evolve eevee
After defeating the Elite Four they challenge you by calling you at random times unlike the Elite Four when they'll always be ready.
SlowpokeNo, because Slowpoke is an exclusive Pokemon to LeafGreen, the game made at the same time as FireRed. However, unlike LeafGreen, you can catch Shellder and have Cloyster.
You can, unlike other games in the series. You just have to leave and re-enter the room, and Kyogre will be there for you to battle again.