Mega Rabbid Kong

Mega Rabbid Kong is the third and final boss in the Donkey Kong Adventure mode of Mario + Rabbids Kingdom Battle. He is a corrupted alter-ego of Rabbid Kong who fights Donkey Kong and co. twice. He is first fought at the end of the Jungle. When the group first sees him, Donkey Kong attempts to rapidly punch him, only to be knocked away. Rabbid Peach then teases Mega Rabbid Kong by stroking Donkey Kong, enraging Mega Rabbid Kong.

In his first battle, Mega Rabbid Kong is initially immune to all attacks due to him draining a literal health pool to recover. He attacks by moving a few cells to the closest character, then launches an uppercut which can Bounce the character caught in the attack. If the character is too far from Rabbid Kong, he will instead attack by throwing a Bwananarang. In order to attack Mega Rabbid Kong, Donkey Kong and co. must attack him directly, or the health pool, or both so that the health pool is drained either way. This can be done a variety of ways, one of which involves Donkey Kong throwing a TNT Barrel at a target.

Once the health pool is completely drained, Mega Rabbid Kong escapes as the health pool explodes, collapsing Donkey Kong and co. into the Dungeon before they can escape as well.

Mega Rabbid Kong is encountered again at the end of the Dungeon. When he sees Donkey Kong and co., he fuses his remaining Bad Bananas together into a two-sided hammer, which he uses to create a whirlwind before eventually slamming into the ground.

In his second battle, Mega Rabbid Kong now has his two-sided hammer to contend with. He attacks by creating a powerful whirlwind that Pushes characters, then moves a few cells to either throw one of his Bad Bananas like a Bwananarang, or glide with his hammer to slam it down at a certain point. Donkey Kong and co. must attack him normally until he loses 1000 HP, at which point Mega Rabbid Kong's HP bar will go haywire. Mega Rabbid Kong will deploy a shield as several panels appear. Donkey Kong and co. must then step on all of the panels to unchain a golden Blast Barrel, which they can then use to defeat Mega Rabbid Kong for good.

Afterwards, Rabbid Kong reverts to normal. Rabbid Peach will grab a Banana to seemingly attack Rabbid Kong as he cowers in fear, but she instead offers the Banana to him, enlightening his spirit.