For me it would be: Lufia: The Ruins of Lore.
It had some nice, tough boss battles... but it was SO glitch and bug ridden, that it took the fun right out of it. Not to mention the quick save system. That didn't work so well when the game kept on freezing in the same area over and over without any way to get past it.
How about you guys?
I have some PSN games that aren't worth getting like Daytona USA. That game has no split screen which is so stupid and the online feature is worthless since almost no one is around to play. It's basically a single player driving game. I swear to god one of the modes is called karaoke where you sing to the song while driving. What.........the.......**bleep**! It also serves less of a purpose since one of the songs is mostly instrumental so they also fail at making a pointless feature to become even more pointless.
I also highly regret buying Mass Effect 1 on PS3 since the port sucks so hard. It was a complete waste of $20 since I stopped playing it. I have to disagree with the fans on this. Gameplay wise, my favorite is Mass Effect 3.
I've also made a huge mistake on buying X-Man Arcade, Tony Hawk's Project 8, and the worst offender of all is Sonic the Hedgehog (2006). One of the worst and easily the most disappointing game I've ever played in my life.
There's quite a few games out there I regret having purchased due to their poor quality. I'll try putting together a list of poorly made games that stink for one reason or another:
Fragile Dreams: Farewell Ruins of the Moon
The Elder Scrolls IV: Oblivion
The Elder Scrolls V: Skyrim
SIlent Hill Origins
Yoshi's New Island
Shin Megami Tensei: Persona 3 FES
Armored Core 4
Resonance of Fate
Legend of Mana
Call of Duty
Alex Kidd in Miracle World
Medal of Honor: Rising Sun
Star Wars Rogue Squadron II: Rogue Leader
Leisure Suit Larry: Box Office Bust
Metal Gear Solid: Portable Ops/Portable Ops +
Final Fantasy XIII-2
Prinny: Can I Really Be the Hero?
There are many other unsatisfying games I've played over the years, but there's also plenty more I didn't pay for or at lest didn't buy directly (such as those that came with the Plus service). These are some of the ones I can remember having had to shell out the money for and not being impressed with.
Uncharted 2. People said it was so amazing butt it wasnt. I hate when people hype things that are bad like that. Drake was not as funny and the ending was stupid