Most of the time, yes. There are some games which have trouble, but those can be fixed with troubleshooting.
PlayStation 3, however, will not play PlayStation 1 games without first installing special software.
I have heard from people play station 1 games work in play station 2's aswell. There are very few PS1 games that are compatible with PS2
It can yes, if its not a slim play station two, you need to take of the front of the play station by unscrewing the front bit putting a normal play station two game in, using a slot card to open it and putting the ps1 game in then closing it with the slot card, This works with burned disc's as for normal play station one games yeah just put it in and it should work
You press CIRCLE, if it is a play-station 2, but other than that I don't really know... It might work on other play-stations as well like play-station 3, or play-station 1. But if it doesn't work then I don't know because it should do in the end...
no, but you can play playstation 1 games on a ps2
No. However, the PS2 is capable of playing PS1 games.
A PS 1 emulator or is used to play games for the Play Station 1 on a PC with a Windows or Linus operating system. It is distributed as freeware. No PlayStation controller is needed to play after installation.
Lego Harry Potter is not on Play Station 2 because there is a Play Station 3 now.
No. PS 1 games work on PS2 system, but PS2 games don't work on PS1 system. Same with PS3. It will play PS 1, 2 or 3 games. But PS3 games won't work in PS1 or PS2 systems.
supposedly yes. I say supposedly because they say that some will play on PS3, however I've had many friends say that they've never found a ps2 game that will work on a ps3, even the most popular ones.
Lego Harry Potter will not be available on Play Station 2 because there is a Play Station 3.
Some work like halo 1 and 2
Yes but only a few games work. Check out Wikipedia for list of original games that work on the 360.