Five crossings stand between you and home: a meadow, a river, a canyon of clouds, a field of lava and the long way back. Glue logs, wheels, fans and balloons into a contraption, then hop on and ride it to the flag.
Wheels drive, fans push the way they face, logs float, balloons lift. Every crossing has more than one answer. Use few parts and be quick for three stars.
Meadow, river, canyon, lava and the long way home: your contraptions carried you across them all.
Chase the missing stars: fewer parts, faster runs. Each crossing has more than one answer.