This face is based on the arcade classic Dig Dug.  Time is in 12 hour format; when the player is alone in the start position it's AM and when he's fighting a baddie it's PM.  Other features:

1UP = Date indicator in MMDD format
High score = steps
Level indicator (flowers) = Steps progress; as you get closer to your goal more flowers appear
Round = Battery level
Extra lives = Bluetooth indicator; 2 lives means connected, no lives means disconnected

There's room for more features in the lower half of the play field.  I tried adding more info there but it either got too busy or too esoteric, such as enemy position indicating day-of-week, so I left it alone.  If you have any ideas I'd love to hear them in the comments.