Shatterdome has updated his Chopper/Helicopter game for the PSP. Changes:

Multiplier goes up with number of”balloons”collected (every 10)

Speed will increase every 3 multipliers (maxes out at 12, it should anyways, yet to get that far :P)

Some aesthetic changes, better death screen with final score displayed.

Now you can use d-pad up/down or square/triangle to control copter

Some clouds scroll by to obstruct view…

http://forums.qj.net/showthread.php?t=37804