Key is the second Flash game by Yomino Kagura in the escape room subgenre. In this room, you'll be needing keys, lots of them. You'll find and use them to discover codes and clues to solve a puzzle that will lead you to the final code that will let you out of the room.

Spikestuff here doesn't bother with any of that since they already know the code and leaves the room in record time without touching a single key.