A 1-credit clear of Emergency Call Ambulance! One of many many clears learned by watching 1CCBBH. I put some notes on the magic 4th-gear trick on the YouTube upload (which also features super-jank video encoding where the emulator window is squished into the top left part of the screen): https://www.youtube.com/watch?v=NqXlzvFrRJg
You start out saving a kid from a traffic accident, and finish by rescuing the president after his plane's shot down. That escalated quickly!