The GameDr video game timer will help parents check their childrenâs habit of playing excessive video games. Parents need to set the time allowed for the game and when the time is up, the electrical timer will automatically lock it. The GameDr is compatible with any plug-in video game system. Parents should not worry about its lock, as a four-digit pass code prevents unauthorized timer changes. It comes with a one-year warranty and will only cost around $30.