This must be completed without exiting the shooting game and without missing any of the targets below.
You need to give the second gnome in the garden the racket from the bedroom before starting the shooting game, Gromit can walk outside freely while the bees are about to do this.
You need to hit:
Bee 1: Shoot the dustbin to knock the lid off, then shoot the tree to draw the squirrel out, wait for a bee to fly above the dustbin and shoot it, then quickly shoot the squirrel in the tree after the bee falls in the bin.
Bee 2: Shoot the cupboard door on the right, wait for a bee to fly above the trousers and shoot it, then quickly shoot the trousers once the bee falls in.
Bee 3: Shoot the stop/go gnome to spin the pond upright, then wait for a bee to fly above the pond then shoot the stop/go gnome once the bee has fallen in the pond. This does not work if you haven't given the other gnome the racket.