Yup, now that's a two-track level...
The lines appear from the upper center then turn to the direction the gate is directing. The lines go diagonally upward then perform two horizontal tracks, then go through the diagonals near the center, then go through the diagonals far from the center, then perform a triangular track and finally turn horizontally and reaching the pyramids at the center
If you aimed the
fireball and the
colour cloud right, you will probably clear or turn the entire line. The
speed shot is gradually important because of the diagonal tracks, which is fairly difficult to fit in. The
lightning bolt is extremely handy against the starting column! Just in case you might need the
slow,
stop and
reverse.
Wild ball is pretty handy in here. If you are trying to finish the next line after killing the previous bug, use the
net. Since the lines can be short, the
colour bomb or the
colour replacer can be handy, as well as the
scorpion (upgrade it to the max level). Because of two tracks you might need to use the
sandstorm.
Generally speaking, if you don't use the
colour sort continuously, you might find yourself that the pyramids on the curtains will be corrupt by the bugs!
Recommended powerups:
fireball,
speed shot,
lightning bolt,
slow,
wild ball,
stop,
reverse,
net,
colour bomb,
scorpion,
colour cloud,
colour replacer,
colour sort,
sandstorm