Tom Fulp - Pico's School
Goth kids have shot up your school and it's up to Pico to save the day!
Tom made this game in 1999, it was posted on Newgrounds before the Portal system launched in 2000; he eventually uploaded it to the Portal in 2006 so people could vote on it and leave reviews.
Pico was made in Flash 3, before the introduction of variables (or just about any code, for that matter). To simulate stored data, Tom weaved a complex web of movie clips that gave orders to the main game. Unfortunately, Tom wasn't aware of frame labels, so all the commands referred to frame numbers, making things difficult to edit afterwards.