I'll copy/pasta from my previous comment:
I was just thinking about the defib puzzle couple of days back. Instead of having a close up of Kenny's chest I was thinking about Yu having a momentary flashback to one of his medical textbooks in how and when to use the defib.
You would need to turn on the defib for it to charge. In the meantime, you'll need to attach the pads to the right area of the chest.
There will be a diagram of a person and players would need to attach the pads to the right place; possibly by trial and error?
Once they're attached, the defib analyses whether the person needs to be administered a shock (shockable rhythm or not) and will be shocked. Maybe you need to hit the button when the needle points to shockable and you can't miss? Mike, let's discuss this puzzle nearer the time.
There is a time limit to get the patches right as well as administrating the shock. I was thinking that the longer it takes for players to get it right, the visuals will start blurring/decaying and Yu will start having flashbacks from that day in A&E along with warped/creepy sound design.
If you fail this flashback scene, Yu has another mental breakdown and Kenny dies. Actually this'll be a good narrative branch that we could possibly expand on for the full version. Hmm let's keep it simple for now and just make it have a game over scene. It'll be cool if the result this puzzle has an actual effect on the story though!
Anyway, that's my rambling.
I've added a 'Puzzle Design' tag and will go back and re-tag a few posts.
As an added bonus, I was re-playing the Edgeworth game and I took a few pictures:
This was literally Mike's reaction to reading the Korean horror comic. No joke.
This is similar to what I had in mind for having two characters on screen so it makes it quite nice to see both character reactions to certain statements.
Ema Skye is back! And she reminds me of Kemi :3