Mister Mosquito is a prefect example why some games don't cross the pond from Japan, and yet this one did. Weird? Yessir
Crtiques? Gameplay was tight, the flight controls were a little sensitive, but the collision detection was excellent. The pressure sensitive biting segments, were tough to wrangle, but strangely satisfying if you managed to pull one off. I did, once. The game indeed gets kinda hard as you progress, and eventually i just gave up; not because it was too hard, but because i hadn't understood enough of the "plot" to really care whether or not i finished it.
Is it worth playing? Uh, i guess, but the collector's value alone is what will drive people to this. It's virtually impossible to find anymore. Can't say I'm real surprised.