You job in UFOrce Drive is to “remove” a certain amount of UFO’s from the
board by arranging them into a certain order (in most game modes a row of 5
UFO’s).

The basic concept is that you start a game with a square or hexagon board,
where a few UFO’s are already present. Now you must move an UFO so, that it
will trigger a start and a group of UFO’s flying away. If you can’t trigger a
start, some new UFO’s will land on the board. If all room is used, the game
ends and you have lost. You can move any UFO to any position at the board, but
only if there is a free route between the start and the target place.

The game offers 8 different game modes, 4 for each board layout (square and
hexagon), these are: Line (connect at least 5 UFO’s in a row; moving single
UFO’s), X-Ray (same as Line, but same colored adjacent UFO’s are connected,
even when moved), Chaser (combine rows, but also complex figures, like
crosses), and Jumper.

Jumper is different then all other game modes, because here you start with a
filled board, instead of a nearly empty board. At the start, you only have one
free field, all other are filled with randomly colored UFO’s. Now “jump” with
one of the UFO’s over another, which is adjacent to the free space. The
jumped-over-UFO will fly away. If you jump over 2 or more same colored UFO’s,
nothing will happen (except that those flying away). But if you only remove
one UFO with a jump, then additional UFO’s will land, filling the board. Once
only one single color of UFO’s remains, you have won. If all the space is used
up, you have lost.

UFOrce Drive