Disgaea 3: Absence of Detention

As with anything in this game, a decently levelled party will get you wherever you want to go.

Survival Mode is quite different from Command Attack. Each floor has certain actions you can complete to get score points. These include stealing items, tower attacks, etc. Completing these actions will also open up a gate that let’s you move on to the next level. I just kept playing through until I got bored, and once I connected to the rankings the trophy popped. You need to make to to at least level 150 of Survival Mode for this to unlock.