In Choo Choo you are tasked with operating the world's first Super War Train, where you will be defending you territory from invading enemies to ultimately destroy enemy bosses and complete multiple addictive missions. This train is a colossal locomotive capable of barreling through items on the tracks and plowing through oncoming opponents. Using the WASD keys to navigate, chart a course along the given tracks, taking out your opponents as you truck along. While choo-chooing through the course use your mouse to break open crates, shoot enemies, and complete various other required tasks. Be sure to watch your health meter on the bottom right of the window, or you'll be destroyed before you realize the damage your opponents are inflicting. Complete the mission's designated goals in the fastest time possible to get the highest score possible. Tip-play with the sound on in order to ensure you're aware of the damage you're taking, and be wary of the building that can obstruct your view of the track.