The card game part wasn't bad.
It was so good someone actually spun it off into it own freely downloadable game:
https://triple-triad-gold.en.uptodown.com/windows
And while were on the topic of disappointing games, lets discuss Super Robot Wars K.
After Super Robot Wars W for DS, everyone was hoping for something different (since W rehashed a lot of SRW J) and a lot less easy, me included.
SRW K was a great example of "be careful what you wish for"
First off, SRW W was easy because game balance always leaned in your favor, and gaining money to level up your units was stupid easy, levels were easy to traverse, and the enemy was generally dumb.
To fix that, they gimped money gathering to the point you have to grind like crazy after a certain point because it's just that hard, levels became a chore to cross (the one retreading the Gundam Seed Destiny CE 73 OVA was gigantic), and due to how they rebalanced enemies, they added so many cheap ways enemies could blunt your damage while increasing their own you had to bench most of your minor team members and rely on the heavy hitters while SRW W let you deploy just about anyone without crippling you too badly.
In terms of what it did different, it was a mix of good and bad, but mostly bad.
Good:
Virtual On: MARZ had actual plot relevance instead of just being there for giggles like in Alpha 3.
Gundam Seed Destiny had minimal plot stupidity focused on and made Cagalli less impotent than in her own show.
Original Mazinger TV got used after so long of Mazinkaiser being done to death, even got a great remix of the original battle theme.
Bad:
Fafner in The Azure Dead Aggressor was a nice addition, too bad the story was generally unchanged and the characters were still screwed in the ending.
Gun X Sword got BUTCHERED. Dann of Thursday is an awesome mech to finally have playable, but it's main character Vann was almost a different person since so much of his character development was omitted. The bizarre ability to convert most of the villains to your team was also insane, given the idiotic logic to it.
GSD got severely abbreviated to the point even what little good it did was cut, and it felt like the story of it clashed with the rest of the world setting.
Zoids Genesis was included, but the sheer amount of canon torture they had to do to make it's plot work on planet Earth beggared even my disbelief.
The storywriters couldn't do basic math, half the cast who had roles in the backstory should have been a decade older than they were depicted as in-game.
Godannar had its excellent love triangle shoved aside for the original character version, which was tedious, boring shit. It's main plot had more holes than swiss cheese thanks to clumsy writing.
The main character, Mist Rex, he was such a prick it's a meme on Japanese image boards to shop him into future SRW games just to piss people off.
The music director was such a lazy hack he outright stole from Chrono Trigger and Lufia II for some of the soundtracks.
The original villains had a cool theme song, a weak plot about wanting to blow up planets to get some rare shit hidden in them, and the worst gelling into a crossover story ever done in SRW games.
Overall boring stage grind where enemies would spam in groups that sponged up damage in many levels.