Oxygen meter and maps with tiny water areas

This was kind of difficult to put in, it would be in 2 different areas and...grah it's confusing
Anyways, the idea is this:
Some of your maps or the MapleStory maps you can customize to have water areas as deep as 5 feet pools (of course you'll have the fly/swim effect)
When submerged into the water, you'll see a meter like the Mana bar, but light blue and decorate with bubbles.
It slowly ticks down after a bit, and once it's gone, your health will go down by 1/20ths or whatever you come up with. Once your health's gone, you're dead, of course.

This is a weird idea, and I think lots of people will have weird What's or responses or nah's about this. So tell me what you think, and I'll see you later!

It's realistic.

Maplestory isn't realistic.

/thread.