Danger Zone D-2

Danger Zone D-2 is the second level in Danger Zone.

Difficulty

 * Target score is very high.
 * The fortress is chaos, so it's hard to find the strategy.

Strategy
Send the Lazer Bird Around the northernmost planet. Redirect him to the wood plank which topped with TNT. TNT should be brought down and detonate, cause wreck the central fortress and make all entire level be cleared if you lucky enough.