Time Commando Trivia (PlayStation)
When you wait and do nothing for about half a minute or less, your character will turn on the radio he's equipped with and use his headphones to catch a tune of few. Of course, with all that, it comes the funny dance and hands clapping.
Rumor has it that Adeline had planned to include a special bonus stage: their own office as a video backdrop. However, the idea was shelved due to time and space constraints.