|Birdday Party 18-9|
|No. of Pigs||: x5|
|3-star Score||: 81,000 points|
|Birdday Party 18-8||Birdday Party 18-10|
Birdday Party 18-9 (or Birdday Party Cake 2 Level 9) is the ninth level in Cake 2 of Birdday Party.
Launch the Orange bird into the top-left corner of the first structure, expanding it just before impact. This should cause towers to fall rightward, detonating some TNTs along the way. Use the White birds as necessary to pop any remaining pigs.