Zookeeper, Lion, Horse and Hay IQ River Crossing Game. Develop your kid's IQ.One for the kids to develop their logical thinking skills.* A Zookeeper needs to bring a Horse, Lion and Hay across a river using a raft.* The raft can carry only 2 passengers at a time. * The Zookeeper must be on the raft in order to steer it. * The Horse and the Hay must not be alone together without the Zookeeper being present, else it will eat the Hay. * The Lion and the Horse must not be alone together without the Zookeper's presence, else the Lion will kill the Horse.Installs on external SD card for Froyo.Credits: HIL Wilson for original idea.