All Grown Up: Express Yourself

All Grown Up: Express Yourself is a party game, developed by Altron for THQ and released for the Game Boy Advance, on October 19, 2004; based upon the Rugrats spin-off series of the same name (which in turn was based on that two-part episode of the original series where the babies build a time machine and travel ten years into the future), it is the second game to feature the Rugrats characters as teenagers, and as such, is geared primarily towards that age group (as reflected by the storyline).

Story
This is taken from the back of the game's box, the front of which is displayed in the image to the right: