Jetbot - The Adventure Arcade Game from Typhoon Systems is evolving into a rich gaming experience.
The addition of dynamic lighting to the levels has provided some interesting new gameplay (dark areas conceal hazards temporarily etc).
Game Center support includes achievements and global leader-boards, so now there is a reason to push through the levels with skill.
The next list of updates includes sound effects treatment and possible parallax addition.
Make sure you grab a copy of Jetbot while its 99c: