you can't buy them...you have to find. to help you should use your finder in you poketech (the watch thing with loads of apps) hope i helped
The only way to buy them its with Battle Points at the second floor in that place by the battle tower Hope I help I LOVE HOPE BREKEL
You can not get PP ups in Pokemon platinum.
u hav to go to the mall in celadon and on the 3rd to 4th floor and if they are not there u hav to find them
Go to the department store in Lilycove city. Buy any ones you want( except rare candies and pp ups) on the 3rd floor.
In the market of "Get a Life"
i dont know but look up 999 hp ups on google
You can buy pp ups at the Shopping Mall 9 on Route 9.
i think you can do the same thing for pearl. which is: go to the UPS place
You cannot buy PP Ups or Elixirs/Ethers in Pokemon Platinum. You can find them around the map, however.
The Energy Guru at the outdoor market in Slateport city sells carbos, zinc, iron,etc. but he does not sell PP ups or HP ups. Basically, you cannot buy PP ups or HP ups
You can buy HP Ups at the Shopping Mall 9 on Route 9.
Best speed Pokemon for Diamond/Perl Deoxys with 453 speed (if you use the power ups) but regularly is 405 speed