Fun for two seconds
Read the rules, got psyched for a target-range challenge. Received, instead, a never-ending conveyor belt of floating heads. Took out eight terrorists and ran out of ammo.
"No problem", I hummed to myself "I'll wait until one of those ammo boxes floats by." So I did. Apparently one cannot receive ammo if one has no ammo.
I sat and watched as, through no effort on my part, I advanced through the "levels" until the game ended.
Not fun, not well designed, not challenging.