Good, not great
I like the idea and the overall grafic and design. The music is a good choice too.
What I missed, is a bit more than just pulling out all the boxes within the time.
There is an inventory with paritally awesome stuff, which could be used for other missions.
The boxes seem to have a life of their own, floating around, then trying to escape or randomly change the direction. Why not making them fight against being caught? One box could swim away wich makes the FBI guy having to dive after, exposing himself to the dangers of the lake and such ...
Just a few ideas of mine.