This collection contains "6" kingdom hearts remastered games in one package. Though this isn't a complete collection, it is complete with all games that came out on old systems. If you are new to the series, play this before playing Kingdom Hearts 2.8 which contains two new experiences and the 3ds game remaster. Skip to bottom if you just want to know play order recommendation. Kingdom Hearts first came out on the PS2 and it still holds up very well. One of the developers of final fantasy had a crazy idea to combine their work with Disney. And it become one of the most beloved games among those who played it. But do not think this is just for little kids, by increasing the game's difficulty it can become quite challenging. They are real time action games (with one exception), so you are in direct control of the main character instead of giving him a set of commands like in original final fantasy games and pokemon. Matter of fact the recent FF15 game's combat is heavily inspired from Kingdom Hearts so if you like that, you'll love KH's combat. Essentially you play as Sora as he learns about the existence of other worlds and that he is a keyblade wielder. You join Donald and Goofy to fight the darkness. Each game can be 35-60 hours long depending on how much side content you play. The game have been updated to 60 frames per second but know there is a day one patch. As you may have notice I put 6 in quotes. That is because 2 games are in the form of movies instead of a remaster port. But don't worry coded isn't worth the time playing through. This collection (in original release order and platform) contains: Kingdom Hearts (PS2) Chain of Memories (GBA, combat is a blend of action and a card system) Kingdom Hearts 2 (PS2) 365/2 Days (DS, movie) Birth by Sleep (PSP, prequel) coded (DS, not that important, movie) For newcomers I HIGHLY recommend playing the games in release order (see above). Yes Birth By Sleep and 365/2 Days are prequels with the story, but some things will be spoiled and/or not much of a surprised if you play the game in story order. The games were somewhat made expecting you to have played previous entries. For example BBS characters already know there are other worlds while Sora in KH1 doesn't and so you learn with him about these worlds. Even if you have played some but not all the games, I still suggest playing in release order because it will be tough going from Birth By Sleep to KH1 because BBS has the better polish combat since it came out later. Only kingdom hearts fans that have played most if not all the games I can see playing in timeline story order. Timeline order is BBS->KH1->CoM->365/2->KH2->coded.