The newest attraction at Vallejo's Six Flags Discovery Kingdom will debut this weekend. It's not a ride, but is sure to create a big roar.VALLEJO, Calif. (KGO) -- Two 3-month-old Bengal tiger cubs are making their debut at Six Flags Discovery Kingdom in Vallejo this weekend.PHOTOS: Tiger cubs make debut at Six Flags in VallejoPHOTOS: Tiger cubs make debut at Six Flags in VallejoTwo 3-month-old Bengal tiger cubs are making their debut at Six Flags Discovery Kingdom in Vallejo.