As Tim said, this is more like a speed mapping contest entry or a minigame for a uther party map.
Some things to improve gameplay:
The wisps move extremly randomly, making it a game of delay rather than skill. Perhaps if you simulated the laws of physics better, having the wisps slowly changing direction? Now you could clearly see that one leader wisp was given random directions to move every few seconds while the other wisps spun around it.
If you decide to keep the current system, i think the "leader wisp" needs to be marked to make it easier to see the direction its spinning.