The 55 Pounder is the main "pearl" cannon available for purchase. It is only available for purchase during & after some Happy Hour/Mega Happy Hours.
Along with 5, 2x 55 Pounder cannons which are level 5 can be used to upgrade to 1 60 Pounder.
Upgrading[]
Level 1[]
Upgrading a cannon to this level costs 1, and will take about 7-8 minutes.
All cannons at this level increase the probability of causing a critical hit by 4%, and increases the damage by 4%.
Level 2[]
Upgrading a cannon to this level costs 3, and will take about 10-11 minutes.
All cannons at this level increase the probability of causing a critical hit by 8%, and increases the damage by 8%.
Level 3[]
Upgrading a cannon to this level costs 6, and will take about 16-17 minutes.
All cannons at this level increase the probability of causing a critical hit by 12%, and increases the damage by 12%.
Level 4[]
Upgrading a cannon to this level costs 10, and will take about 25-26 minutes.
All cannons at this level increase the probability of causing a critical hit by 16%, and increases the damage by 16%.
Level 5[]
Upgrading a cannon to this level costs 15, and will take about 37-38 minutes.
All cannons at this level increase the probability of causing a critical hit by 20%, and increases the damage by 20%.