In Icy Cave you're in control of a Yetti whose mobility is very hampered. You'll have to learn how to use him to finish the objective for each level without getting hurt. Click on the Yetti and then click on the arrow to get him to move in the direction you want. Click on him again to stop him. You'll want to collect as many gems as you can. Since you cannot jump or run, you will have to do a lot of staying in place or stopping and then starting again to avoid dangerous objects. The fun part of this game is that you're often in control of more than one Yetti, which can really get confusing but is a challenge you'll enjoy! Good luck with Icy Cave and have fun!