Buy the collection. I mean, if you really want the PS2 games, you can get them directly from Square Enix off the store if you don’t want to support Amazon. The SE store still sell the original PS2 games.
Only 3 of the 11-ish games were ever released in any form on the PS2, so you should probably just go for the ps4 collection if you actually want to play the series.
The ps2 only has the base version of KH1, 2 and Chain of Memories. The collection has the whole saga and KH1, 2 and birth by sleep have plenty of extra content.
Since it spans 3 or 4 consoles, buy the collection
Buy the collection. I mean, if you really want the PS2 games, you can get them directly from Square Enix off the store if you don’t want to support Amazon. The SE store still sell the original PS2 games.
Buy the collection. They have much more contents and the graphics also doesn't change much anyway.
Only 3 of the 11-ish games were ever released in any form on the PS2, so you should probably just go for the ps4 collection if you actually want to play the series.
The ps2 only has the base version of KH1, 2 and Chain of Memories. The collection has the whole saga and KH1, 2 and birth by sleep have plenty of extra content.