There is no "most" POPULARgame and there are many games which are famous over the period of PS2:
But here is a list of the popular PS2 games:
God of War I & II
Shadow of Colossus
Final Fantasy X-2
Final Fantasy XII
Half-Life Ports
WWE Smackdown V/s Raw Series
Tekken 4
Virtua Fighter 4
Silent Hill 2
Resident Evil 4
ICO
Gran Turismo 4
Devil May Cry Series
Kingdom Hearts
Metal Gear Solid 3 : Subsistence
GTA : Vice City
GTA : San Andread
GTA III
Grand Theft Auto San Andreas 17.33 million
Modern warfare 2 is the best selling game so far
The PlayStation 2 was a milestone in video game history, selling over 140 million units worldwide.
The best selling Playstation game ever was Grand Theft Auto San Andreas featured on the Playstation 2 console with approximately 17.3 million copies sold.
Game developers discontinue games when they stop selling.
If you are selling a PlayStation 1,You will get around £20.00 on eBay. PlayStation 2, £50.00 PlayStation 3, £250.00 PSP, £100.00
Not in the USA in Spite of articles claiming that it is or was available. It is available and was a top seller for October 2011 on the PSN Playstation Store selling for $9.99 as a 344MB download described as A boxing-style fighting game featuring robots as combatants, based on the recently released film,
No, but you can play PlayStation games on a PlayStation 2.
Grand Theft Auto: San Andreas with (17.33 million approximately) according to related link
most of them can be played on a playstation 2
The PlayStation 1 game console sold over 100 million units. The PlayStation 2 beat this sales record by selling 155 million units.
no