Go Opus Go 4-in-1 Crawl & Chase PalThe Baby Einstein Ocean Explorers Go Opus Go toy has 4 modes prone position, seat & play, catch play and dance; it grows with baby's physical and cognitive needs. Baby can learn numbers, shapes, colours and opposites in 4 languages: English, Spanish, French and German. Opus promotes baby's coarse and fine motor skills, listening comprehension and learning cause and effect. In prone position mode, the baby can experience how opus lights up, spin and