Kingdom Hearts: Melody of Memory is a great rhythm game that is sure to be enjoyed by newcomers and veteran players of the genre. However, if you're buying it for the story you should probably skip this. This isn't the Kairi game fans have been pining for since the Re:Mind DLC.
Blue Fire is a game that does its best to tie together the best parts of other games, but doesn't quite make it work. Its platforming is great and offers a great challenge, but combat and level design needs work. What's there is good, but it could be much better.
Mass Effect: Legendary Edition is a phenomenal remaster of the original trilogy, with enough changes to not only feel fresh, but with enough quality-of-life improvements to truly call this the definitive way to play the Mass Effect trilogy.