I love 999 and its follow-up Virtue's Last Reward is one of the best sequels ever made in my opinion. The plot is just as enthralling and it blends story and in some really unique and surprising ways. Zero Time Dilemma is good too, although it didn't quite grab me like the first two games in the series did.
Check out Danganronpa too. I loved the first game in the series most of all but really all of them are entertaining in their own way.
The cast was great (especially Kate McKinnon) but too many of the jokes fell flat for me to call it a good movie. I didn't really care for the original ghostbusters movie though so I wasn't expecting this one to be anything more than a silly way to kill an hour or two.