The Pokemon with the lowest HP is Shedinga. The base HP for this guy is 1, and stays that way no matter what unless you hack. It at least has the ability Wonder Guard to make up for this.
the two best ways would be to lvl. them up or use lots of HP ups.
You can buy HP Ups at the Shopping Mall 9 on Route 9.
Blissey has the most HP of all Pokemon.
There's no Pokemon with 1,000 HP. The closest to 1,000 HP is over 600-700 HP and that is Blissey.
The item Hp Up if used on a Pokemon will increase the maximum amount of health that Pokemon has currently so lets say your Pokemon has 20 HP use the Hp Up on it and now it may have up to 22 HP and this isn't temporary once you use the item it's Hp will remain 22 until of course you level it up or use another Hp Up.
go to bag,go to medicines case,click on hp and give to pokemon.
By leveling up your Pokemon
Softboiled is a move that allows a pokemon to restore half its hp
The Highest amount of HP that the game can display is up to 999 HP. That amount is impossible to achieve by legit means, Blissey is the only pokemon with the highest HP stat that can reach up to 720, if trained right.
Pokemon to higher level or HP box full
There is no Pokemon with HP of 2. I know a Pokemon that has 1 HP though. Shedinja.
The Pokemon with the lowest HP is Shedinga. The base HP for this guy is 1, and stays that way no matter what unless you hack. It at least has the ability Wonder Guard to make up for this.
the two best ways would be to lvl. them up or use lots of HP ups.
You can buy HP Ups at the Shopping Mall 9 on Route 9.
Blissey has the most HP of all Pokemon.
There is no such thing as unlimited hp in Pokemon platinum since the max hp any Pokemon can have in the game is 999 hp. Some people have came up with ideas though of trying to get to status but few actually come out well. If you have an AR you can put in a code that can heal your Pokemon to full health in the middle of the battle, this is the closest thing to unlimited hp right now.