This improv game is in the following improv game categories:
The other player enters and asks if he can play with the box. Player 1 agrees, but adds something like "Whatever you do, don`t push the red button".
Player 2 begins to play with the buttons, controlling player 2. Then, we slowly work up to the use of the dreaded red button, which will make player 2 do something not-so-obvious. This can be anything, but it should not be preconceived. The red button might become a Mood swing button, a Start Screaming, Start Giggling, Sing Opera, or Switch-to- Gibberish button.