Serious games for programming provide players with some type of algorithmic mechanics to accomplish game challenges. Such mechanics maybe formally algorithmic, or in some cases not theoretically linked to strict programming constructs, although still characterized as programming-related games. We discuss a serious game with visual programming where the primary mission is the development of a simple 2d game. Its primary novelty is the lack of separate build and run cycles. There is only one game mode, with gameplay and game development being inseparable, where every game object can be clicked, live-programmed, and live-edited during play. Additionally, time may be freely rewind and replayed, undoing or redoing internally all related user actions and game state updates. During such time travels, it is allowed to drop the entire history onwards, from any given point in time, and continue from there.