HBA-001

HBA-001 (And its upgraded form HBA-002) is the boss of Act 5: The Colosseum, and Act 17: Betrayal.

Background
It is a sentient robot built by Roger’s servants. Roger uses it as an expendable unit, and constantly abuses it with a shock collar. The robot slowly started to hate Roger more and more over time, until it eventually snaps at the end of Act 17.

Overview
It’s a tall, bulky robot with piston-powered fists and legs. Its face is permanently stuck in an expression of calmness, despite its mood. In the second encounter, it has two more arms and it’s a darker shade of blue.

Strategy
Battle 1: Avoid its attacks, wait for it to do a power attack, and then watch it slam into a wall. Repeat two more times.

Battle 2: Same formula, but after it slams into a wall, attack it.