No save point for the lazy

I finished Mario & Luigi Superstar Saga for the GBA. It took me about 28 game hours and a wasted weekend. I liked how the end boss was difficult not only stat-wise but reflex-wise. But at the end, there was no save point! How was I going to save the end credits? After watching that there really wasn't much more to the game. I did like that mini-game with all the falling stars, etc. The game is done. What do I with it?