Universal studio as a solo traveler

On one hand, who doesn't like rollercoasters and fun? On the second, i dont know if it'll be fun alone, i mean, completely alone. Yeah it's fun because u can literally decide for urself on which rollercoaster/attraction to go to but still if someone ever did this alone id like to hear some opinions.

On the (third?) hand – im not sure if amusement parks are my goal to this trip to japan, im more of a nature/views, traditional activities (sushi making/sumo shows/samurai museums) and food kinda traveler.. rollercoasters are everywhere no? Or is it really a bang and a must experience?

Thanks

by ShatteredMoves