1. Click the gnats. Miss and your swatter jams for a moment, so aim before you swing.
2. Chain hits without missing to build a score multiplier, up to 3x.
3. Hit the room's target before the clock runs out to unlock the next room.
4. Six rooms, each one grimier than the last. It ends in the stream room.

Cyan gnats add 10 seconds. You will need them.

Splitters turn into two smaller gnats when you swat them.

Zigzaggers change direction constantly. Don't lead your shot.