Cupistol in Yo-kai Watch 2

Cupistol can be found on the 4th and 13th floors of the Springdale Business Tower, which must be unlocked by summoning Illoo to the Baffle Board outside the tower, in Gourd Pond Museum at night and in long grass in Downtown Springdale.

He can also be found in the Infinite Tunnel on a team with Signibble or Blowkade between 2000 and 4999m.

He can also be found in the 1st and 2nd Quiz Rooms behind the 40 Gate Globe Gate of Whimsy. He always appears in the top middle tree in the 2nd Quiz Room. He also can appear in regular Gates of Whimsy.

Lastly, he can also be randomly encountered on the train on a team with Snaggly at level 13.