Terry Cavanagh has released
VVVVVV, a new retro action indie platform game for Mac and Windows computers. In the game players take the role of a spaceship captain trying to save his crew and escape a strange new world. To navigate VVVVVV's levels players make use of the captain's ability to reverse gravity.
Both downloadable and flash based demos of VVVVVV are available. The full version costs $15.