KH2- I plan to get it... Should I?

I was wondering if it would be worth the cost to buy KH2?

I only have KH:COM (for GBA) so I dont know much about the series...

Can someone tell me about the game and how it works:
*MINOR SPOILERS ONLY* Please....

Thanks in advance.

The first thing to do would be to get the first one, meaning Kingdom Hearts I.

That should answer almost all of your questions. In short, I would say yes to getting KHII.

KHII SPOILERS READ AT YOUR OWN RISKSo, I was like, about to get this game, because it looks cool and all that. It's totally rad, because you get to play as this coolass character. Let's call him Yu Yevon.

Over time, Yu Yevon's heart was corrupted by Old Manus, Arucard, Levian, Kyono, rubah, Leeza, Miriel, kikimm, Rye, and their leader Christmas; the true custodians of the HATE. The Red Mage Pirates Zeromus_X, FlareNUKE, and many other noble pirates led by Captain Maxx Power tried to stop them, allied with the forces of PsyPie the Overlord; but they failed due to the intervention of Loony BoB; also known as "the Deceiver." On the journey to the final battle, PsyPie took three trusted guardians with him: Sora!, Del Murder, and Rye. Rye betrayed the team, and PsyPie and the others were captured by Andross Loony BoB.

Sora! barely escaped Venom, and returned to deliver the news to PsyPie's dear, and young son, Mulley. Raised by Spatvark, the Keeper of the Pwn and cl_out, the Machina-Master, Mulley grew strong, and went out to fight back against the forces that captured his father. Unbeknownst to Mulley and his air forces, StarMullet (comprised of the members theundeadhero as wingman, Trumpet Thief as engineer, and Giga Guess as analyst), as they blasted off to fight the HATRED, the HATE had launched an attack against Site Staff, the home of Mulley. A second fierce battle occured over the HATE's base of operations, the Feedback Forum.

Raistlin the hermit was found hiding amongst the ruins of the HATE's secret weapons, being attacked by the promiscuous and dastardly cunning Shlupquack. Mulley slew her, and used her bones to predict the location that the HATE's base of operations would appear, since it required five minutes of maintenence each day. Aided by Captain Maxx Power of the lunarweaver, he and his allies, back by Avarice-ness and roto13-ness, a newlywed rogue couple, laid siege as Mulley entered in. It was soon he encountered the stone sentinels: Election Booth and Award Guy. He broke them, and found himself face to face with the Dark Lord Sauron Loony BoB, and his One Ring, which was also protected by nineteen other rings.

Mulley was forced to flee, but in the meantime, the attack forces had done more damage than anticipated. They destroyed the base, perhaps a little too easily. It was in that moment, that all hope had faded! Elendil Zeromus_X was slain in noble combat, alongside with SeedRankLou, a great sage of unsurpassable knowledge. However, his disciples, Aurons Ghost and Skyblade took on the charge, and laid further siege to the HATE. But alas! all was in vain, for the true Dark Lord Melkor Christmas had arrived. He had slewn the remaining Valar (the Powers that be that were not yet under his domination: eestlinc, RSL, Samuraid, Big D, and even Jojo, for his HATE knew no bounds).

Mulley and his allies failed in that moment. But their courage is not forgetten. Christmas had lost many of his generals, Rye, rubah, kikimm, Arucard, and even the sly Kyono. Crippled, he prepares his new and ultimate weapon, the Death Star BIGASS ORB OF HATE BITCH against the meaining rebels, led by Leeza, whose spirit was freed from the unknowning domination of Christmas. Under her direction, even now does the fight continue. Levian and Old Manus are unaccounted for, but it is likely from this recent string of attacks that matches their MO (Modus Operandi) that they have left the coersion of the Dark Lord of HATE.

Soon however, help came. Little Miss Awesome led a rebel force against the Dark Lord of the HATE, along with Raistlin. While they were captured, they caused even more damage to the unsurmountable Chistmas. The Administatar and baloki struck back, and freed the captives. Christmas, sensing his failing power, recruited even more custodians of the HATE. Bleys, Doomgaze, and BOU fell to his evil influence, and they fought hard against the rebel force. He delved deep into the evil arts of Necromancy, and raised the unwilling spirirt of PsyPie, and sent him against his former allies (except Leeza, who was his enemy whilst alive). Scared, Raistlin and Little Miss Awesome were forced to flee, underground, until at last they come to the Final Solution.

....Interesting as that was....

All you need to know is travel as Sora, Donald and Goofy to various Disney based worlds to save the universe and find your long lost friends.
But seriously, it is best to pick up KH1 beforehand. At the very least you will save some money if you don't like it.

Play KH1 first to get a feel for the game. Then KH2...if you're up for it...