|“||The holographic security system that defends this area from intruders. It analyzes past battle data and produces one holographic security guard after another.||„|
|~ Pause screen description|
The Holo Defense API is a security system designed by the Haltmann Works Company. It serves as an antagonist and boss in Kirby: Planet Robobot, being encountered in Resolution Road.
The Holo Defense API acts as the Haltmann Works Company's security system and bodygaurd. He carries his duties with resolve, and he seems to have a good memory, as he is able to copy one of the earliest bosses, the Ice Dragon from Kirby's Dream Land 2, rather flawlessly, even improving on the dragon.
The Holo Defense API has four diamonds as a body. He has a ring of grey tablets surrounding his body. His diamonds vary in their colour: the first diamond is white on the right and lime green on the left, referencing Kracko, the second diamond is purple-blue on one side and red on the other (normal and fiery Sphere Doomers), the third is green on one side and cyan on the other (Ice Dragon), and the fourth has a red and orange scheme (Coily Rattler). Once their respective hologram bosses are killed (signaled by their form being disrupted as the holograms disintegrate), the diamonds will shatter leaving behind their wireframe outline.
In the Extra Game, the Holo Defense API's diamonds change their shape to cross shapes, the first one has a grey and purple colour scheme (Kracko EX from Kirby Super Star Ultra), and the last one has a silver and red colour scheme (Coily Rattler DX). His tablets are now blue, and he is called Holo Defense API 2.0 (2.0 is EX's Planet Robobot equivalent.).
Kirby encounters this boss in Resolution Road. The Holo Defense API initially does not attack, instead summoning holograms of past bosses Kirby has faced to fight the puffball. However, after all four of his holograms are destroyed, the API begins moving unpredictably around the stage. After Kirby hits him several times, the API will fly violently into several pillars around the area before exploding in a flashy manner.
- The API earned his name from the term Application Protection Interface.
- His battle system is similar to Ado and Adeleine, who also come from the Kirby series. All three summon minions to deal with their opponent, and can be taken out easily during their final phase.
- The Holo Defense API's crystal-like appearance makes him resemble another boss in the Kirby series, Pix from Kirby 64: The Crystal Shards.
- How the API flies throughout his room upon his defeat is very similar to how Topmaniac flies around in Super Mario Galaxy.