Tokyo Disney Sea

To have fun in TDS or TDL is depend on how you use fast pass well and arrange your time well. There has some electronic board in TDS which helps people to arrange their own schedule.
http://www.tokyodisneyresort.co.jp/tds/index_e.html

The fast pass ticket

 Just go to the FASTPASS ticketing machines near the entrance of the FASTPASS attraction you want to ride and insert your Passport ticket to receive your FASTPASS. Then return during the time period printed on the FASTPASS and enjoy the attraction. It's easy, it's free, and it will save you lots of time!

Tokyo DisneySea Park

FASTPASS tickets are available for StormRider, Journey to the Center of the Earth, 20,000 Leagues Under the Sea, Mermaid Lagoon Theater, Indiana Jones Adventure: Temple of the Crystal Skull, The Magic Lamp Theater, Raging Spirits and Tower of Terror .