Signs

Alphablock G and her friends come across Alphablock S pushing up some mysterious signs. They learn to read them and discover that each one is an instruction. JOG tells them to run on a travelator. They HOP across some stepping stones and then clamber UP a net. Finally, they GET IN a gravity ball that rolls them back to the start of what they now realise is a super game devised by S. They can't wait to have another go.