Once you find all five crystals in the Ice Warp Room, you can access this boss fight. These two reptilian brothers work together to defeat you. However, they only come at you one at a time. Also note that they share a health bar. Inflict three damage on them to defeat them.
The first Komodo Brother moves around the area with a spin attack, trying to hit you. Stay away from him, and when he becomes dizzy from spinning, move in and hit him with a spin attack of your own. He then rolls into his brother, and the two lose one health.
The second brother now takes his turn. He throws swords as he rotates in the center; move away from the swords when this starts. He eventually hits his brother and sets him spinning again. Stay away and wait for him to stop, then rush in and land a spin attack on him while he’s recovering. Only one more health to go.
The last part is the most difficult. Dodge the thrown swords. At some point the first brother starts spinning again. Now you must avoid the spinning brother and dodge the swords at the same time. Keep moving around until the spinning brother stops. Close in for a final spin attack to win the battle and defeat another boss. For your efforts, you receive the “Komodo No Mo” award.