We visited this park with taxi from our hotel. You will have to ask the front office to call a taxi going home. However there is bus stop regularly coming to this park. Should check the schedule ahead.
The park with comedy, theatrical open space ninja shows are good to go. The conversation are all in japanese, abit hard to follow for foreigners without japanese skills
We tried the maze. Amazing. A bit light headed at the shaking room. A must try maze experience. If you are not brave, tried it with groups of friends.