This calss is just like Mercedes and Demon slayer: only Available to ppl who have made an account before March 16th, and never logged on since. but sadly, you can no longer make the class. so this is the guide whoever still have it....
1st Job
Cannon Blaster Max
Blast Back Max
Cannon Boost Max
Cannon Strike 16
Results: everything maced except Cannon strike
Cannon Blaster should be max first, cannon strike would be over powered by another skill in the 2nd job so just put 16 into it.
2nd job
Critical Fire: maxed
Cannon Mastery Max
Pirate Training Max
Barrel Bomb: max
Cannon Booster Max
Monkey Magic Max
Scatter Shot 16
Results: everything maxed except Scatter Shot
3rd job
Reinforced Cannon MAX
Pirate Rush MAX
Counter Crush Max
Cannon Spike MAX
Monkey Madness MAX
Cannon Jump MAX
Barrel Roulette (6)
Luck of the Dice MAX
Monkey Wave MAX
results: everything maxed except Barrel Roulette
4th Job
Double Down: Level 5
Cannon Overload: Level 30
Cannon Bazooka: Level 30
Canon Barrage: Level 30
Pirate's Spirit: Level 30
Mega Monkey Magic: Level 30
Hero's Will: Level 5
Maple Warrior: Level 30
Monkey Militia: Level 15
Anchors Aweigh: Level 15
Nautilus Strike: Level 30
i believe that is the skill build for 4th, correct me if im wrong.