Rack-O%20Jr.%20is%20the%20first-ever%20junior%20version%20of%20the%20family-favorite%20game%20Rack-O!%20The%20goal%20is%20to%20be%20the%20first%20player%20to%20fill%20your%20rack%20with%20cards%2C%20from%20lowest%20to%20highest.%20Number%20cards%20are%20color-coded%20to%20match%20the%20colors%20of%20the%20rainbow%20(and%20colors%20on%20the%20racks).%20Special%20cards%20add%20to%20the%20fun.