YELLOW, RED, BLUE AND IF I GET ANGRY GREY

This inventive pairing of colors with musical riffs offers almost unlimited opportunities for visual and aural experimentation—plus jigsaw puzzles for more structured entertainment.

Each of the four colors are introduced individually with their musical themes, first by blank screens to draw on and then stylized, big-eared animals whose parts can be moved about with a fingertip or left to separate in a tilt-sensitive drift. On following screens, the color fields and the figures appear in combinations that can be reordered or rearranged to create both color changes and musical juxtapositions or even, with rhythmic tapping, multilayered arpeggios. The title screen’s “Play” option leads to three jigsaws and an unusual kaleidoscopic puzzle that all use the same set of shapes and colors in fresh compositions. Comical grunts, drawing lines that transform into flights of butterflies and other small flourishes enhance the artfully designed interaction. There is no narration or text, but children will find that in addition to drawing and playing with colors, they can create a story that ends with enormously satisfying chortles.

A rewarding alternative for children who find the digital edition of Hervé Tullet’s Press Here (2012) too relentlessly inscrutable.