Day 1 - "Hitting it Hard"
I'm linking to the hotel we stayed at, a great family hotel (albeit no laundry in room). Starting there, you can take it easy...visit the aquarium, take a cruise, see the Little Mermaid statue (I'd argue it's every bit as good as the one in Copenhagen), etc. But this day calls for getting out and seeing the best of Osaka, which is Dotonbori. It's frantic. Giant, animated signs. Life. Action. Food. Chaos. It's great.