TD = Cthulu Difficult
SCD = Shadow Castle Difficult
TH Cthulu Heroic
SCH = Shadow Castle Heroic
GD = Gulu Difficult
GH = Gulu Heroic
DZN = Dragon Zone Normal
DZD = Dragon Zone Difficult
DZH = Dragon Zone Heroic
GSMD = Gulu Sports Meeting Difficult
GSMH = Gulu Sports Meeting Heroic
TVD = Temporal Vortex Difficult
For Shadow Castle Difficult having about 700+ all stats is a good way to go. Point is having 6k hp and 700 def to make healing go to a minimum. Also having about the same kind of offense helps too.
Shadow Castle Heroic 850+ defense with 7k hp and +12 aa along with +12 weapon is advised.
Cthulhu Difficult about 800 defense with 6.5k hp.
Cthulhu Heroic 900+ defense, +12 aa is advised along with 7k+ hp and +12 weapon.
Gulu Difficult having about 5k hp and 600 defense is acceptable.
Gulu Heroic having 700+ defense, 6.5k hp and a +9 or higher angelic arm is ideal, also a good damage output as the final boss does have armor on.
Dragon Zone Difficult you need about 700+ defense, 6.5k hp and good damage output.
Dragon Zone Heroic you need to have 1k+ defense, and about 7.5k+ hp with *AA or AA at +12. Everything has to be +12 by the way.
Gulu Sports Difficult 750+ defense and 7k hp is best. An aa of +10 is also recommended.
Gulu Sports Heroic 1k+ defense and 8k hp. +12 everything and *aa is must.
Time Vortex Difficult you need 1k+ defense, +12 everything and 8k+ hp.
Time Vortex Heroic you need 1.5k+ defense, gold everything, 14k+ hp *aa at +12 with aa league boost.
If you have players of this caliber and requirements you'll pass all the boats if you and them meet the criteria. Prizes for all the Difficult boats are cardboxes, lv4 pearls, slv3 pearls, clothing and jr drills along with weapon pieces or arm pieces. Has chance to spill energy stones too.
Heroic boats give the same thing but also can give boom, spear, axe, *aa, barok shield, ES5, S-lv4 pearls