I finally beat: Phoenix Wright – Ace Attorney
Dang. That 5th case is really long.
The initial tutorial case is short, and the next is double its length. What you do not expect is that each case doubles the length. Save points between each of the 3 days stretches to between phases of each day. Then during particularly long court sequences you may get another auto-save. During the 5th case, you get several checkpoints during a single conversation.