Gekisha Boy is a 2D side-scrolling game in which you play the part as a camera man who is out to snap some high paying photos to please their contractor. You control the movement of the shutter aim and you have slight control over the character as well (using the same style of control as such games as Cabal). You walk along a side-scrolling street and you have to snap unusual/tragic/funny or simply weird photos to rack up the points. It can be anything from crashing airplanes to Marilyn Monroe lookalikes and UFOs abducting cars. Every stage has a set score you need to reach to progress to the next one or you have to start it over again.

David Goldman is an amateur photographer, who always loved to take pictures. One day, he went to Los Angeles Photography School to study more about taking pictures. Everyday, David commutes on the crowded trains, but trained and learned better in the academy so he can achieve his dreams on becoming the best photographer he ever wished for. He was happy at that time, but suddenly misfortune hit him. David's parents suddenly died in a plane crash, leaving him orphaned and all alone. He loved his parents deeply and cried at their burial, thinking that they will come back. David lost his confidence and is about to leave the academy to live a lonely and sad life. However for Dean, the principal of the academy saw him and made an unexpected proposal to him. The principal said if he completed 8 tests by taking 8 special photograph shots in 8 different locations, then he's allowed to graduate in the academy. Unsure about this offer, David still accepted the test and did everything he could to pass.