More Rush Hour Fun with these Add-On Game Packs! Each Rush Hour add-on game pack features a new escape car and 40 original traffic nightmares with solutions, including challenges at the GrandMaster level. Having fun is great way to learn with ThinkFun & Think Fun games. ThinkFun games engage kids and educate kids. They challenge players and nurture the thinking skills important to growth and development. Our games aren’t designed to simply occupy a child’s time. They channel the natural joy and energy of play into a stimulating, family-focused way of building essential thinking skills.