Instructions are in-game. I decided not to add jobs (which were going to be minigames). I may add them back in a future update.
Credits are in-game. Update Log: v1.0.0: - Game is released. v1.1.0: - Updated instructions for the final minigame. - Put a longer audio delay and made it to where you can only use the audio every 45 seconds. v1.1.2: - Fixed a bug with the credits. - Fixed a bug with one of the upgrades. - Removed the ability to see motion while using the audio interface.