I had a problem when I was programming the Game Boy version of GoSub. The sub kept moving into the coral sometimes. But I took a few hours to work on it today and I think I finally solved everything.

That's what the ingame part looks like. You can now bump into the coral and lose a life. But the treasure is not yet activated so you go right over the treasure without picking it up and ending the level.

I'm so sleepy but it's only 5 p.m. And I'm hot.