Kingdom hearts is on various systems, including, gamecube, playstation 2, Nintendo ds, Nintendo 3DS, psp, and mobile phones.
You can buy them online :) :P
Kingdom Hearts Birth by Sleep is for the PSP.
Kingdom Hearts 1 is for the PlayStation 2 or PS2.
The game titled Kingdom Hearts is for the Playstation 2 system, although the series of Kingdom Hearts is for many systems, including the DS, PSP and cell phone.
Kingdom Hearts is only for the Sony PlayStation 2 entertainment system/
PlayStation 2
There is no official title known as Kingdom Hearts 3. New Kingdom Hearts titles are set to come out in the future, as confirmed by Tetsuya Nomura, but nothing is certain of a "Kingdom Hearts 3". There is no current way of knowing what system Kingdom Hearts 3 will be for.
First off, Kingdom Hearts 3 has not been released yet, and neither has the name. So I can only speculate upon a future event that has yet to happen. I am also going to disregard the name, as Kingdom Hearts 2 does not have a surname. However, the answer is yes. Interviews with team coordinators as Square Enix have confirmed that Sora will withstand as the games main character throughout the end of the Xehanort Saga, which is destined to end with Kingdom Hearts 3. However, it has not been confirmed whether the Xehanort Saga will be the end of Kingdom Hearts, or of Sora...
Ps2 (kingdom hearts, kingdom hearts 2, kingdom hearts re:chain of memories), gameboy advance (kingdom hearts chain of memories), ds (kingdom hearts 358/2 days, kingdom hearts re:coded), psp (kingdom hearts birth by sleep), 3ds (kingdom hearts dream drop distance)
Well, according to the kingdom hearts wikipedia, the system that kingdom hearts 3 358/2 Days is coming out for is the Nintendo ds, but if you are asking about Birth by Sleep, it's the PSP. -Cloudxtifa fan =3
No. Kingdom Hearts Birth by Sleep is for the PlayStation Portable (PSP) hand-held system. There are no current Kingdom Hearts titles for the Nintendo Wii.
Cell phone