"Mario & Luigi RPG Brothers Fly Together!" The Insulated Cooler in "" is a very powerful special BOSS in the game, and there are many useful combat plugs to fight the Insulated Cooler. The first is the temperature guard, which can prevent burning and freezing effects.
What kind of combat plug is good for insulating Coolba
The best combat plug to defeat the Insulated Cooler
Choosing the right combat plug is more important than anything else in this battle. Since you'll only be using brother attacks, you can pretty much ignore all damage type related plugs and focus on defensive plugs.
Auto Mushrooms and Deluxe Auto Plugs are literally lifesavers. I would start equipping these two every time as they keep you healthy in the early stages of the fight and allow you to focus on defeating Bowser as quickly as possible. You can also add a charging bank if you want to extend their effectiveness.
In the later stages, damage reduction shields and easy counterattacks become more important. A damage reduction shield will help you survive Insulated Cooler's powerful angry attacks, while easy counterattacks will help you dodge his hard-to-dodge moves. When Insulated Cooler traps you in a red pipe, equipped with the Easy Counter Plug, you'll easily be able to deflect his fireballs back at him.
While you may only have two Umbrellas at this point, automatic Umbrellas can still be a life saver, especially if you can't defeat Bowser before the Insulating Circle reaches you. You can't use brother attacks while one of the brothers is suffering from the Insulation debuff, so it's crucial to clear it immediately.