TANDEM is a set of two split-up game controllers designed for two people to play together, adding “slide and pound on thighs” into parts of the control and separating all the inputs into two categories, "Motion" and "Action.” It can team up two people to play as one to help foster interactive, meaningful bonds and create shared memories between people of different controlling skill levels or even different generations. TANDEM has the potential to make any kind of video game couch-cooperative, and playmates are the most playful point while playing video games with TANDEM.