Buggy/Bi-pedal battle walker
Four wheels/Two legs
Due to the good performance of the original hellion designed, the Terran Dominion opted to provide an upgrade to the vehicle. By combining the original vehicle’s speed, agility and firepower with the new battle mode’s strength, armor and durability, the hellbat is said to represent "the future of tactical assault technology." After the hellbat proved its worth on the battlefield, Dominion engineers quickly developed an upgrade kit to retrofit all previous generation hellions with the required components.
The hellbat template was built upon a heavily modified version of the hellion’s stock neosteel frame, which houses the complex set of servos, hydraulic systems, and robotic components that allow the mechanized walker to seamlessly transform into a vehicle and vice versa. The hellbat makes use of its predecessor’s base platform but adds state of the art robotics to the design. The most striking advancement comes in “battle mode,” which reconfigures the buggy into a mechanized walker.
The hellbat is equipped with a large variable burn engine powered by a variety of liquid or compressed fuels—essentially the big brother of the stock Hellion engine with much improved airflow. This upgraded engine provides enough newtons to compensate for the extra weight of the hellbat’s bulky systems. Like the hellion, it is also rumored to run on Scotty Bolger's Old No. 8 Whiskey.
With the advent of the hellbat, it became a necessity to replace the hellion’s scant plating. Dominion engineers used an experimental paristeel/bonded carbide weave (lighter and better insulated) to protect operator and machine from the incredibly high temperatures of the napalm spray. Additional heat-shielding, made from an expanding and re-forming material, was installed under the hellion’s chassis. It has proven very effective as a means of additional insulation, and it doubles as a solid riot shield. 
In battle mode, the hellion’s infernal flamethrower transitions for immediate use, while a thick layer of heat shielding beneath the hellion’s chassis expands and re-forms to protect both robot and driver. The original incarnation of the infernal flamethrower was ineffective in close quarters, and installing a second weapon on an already taxed chassis proved unfeasible. To solve the issue, handy hellbat operators added a home-made, manually activated system, albeit useful only in walker mode as it reduces effective range, to pump polystyrene foam into the barrel of the infernal flamethrower prior to firing. The foam alters the density of the plasma fuel, which increases the flame’s intensity when ignited. This makes it very deadly against unarmored or lightly armored targets. This foam system is now standard issue in all Dominion hellbats.
After a friendly fire incident that killed 17 marines and sent 48 to the medbay with fourth-degree burns, the hellbat’s antiquated targeting system (a relic even by the antiquated hellion's standards) was replaced with a more sophisticated version. The new system provides better target acquisition, tracking functionality, and enhances the hellbat operator’s situational awareness. However, no targeting system can make up for the fact that the weapon sprays napalm. Troops are advised to steer clear of the line of fire.
18 (splash radius 45)
In comparison to the hellion, the hellbat's attack has a shorter, but stronger and wider flame. It is slower than its counterpart, but also tougher. While the hellion is mechanical, the hellbat is both biological and mechanical, and can both be repaired and healed.
The hellbat is an effective counter unit to massed (charging) zealots. Its attack is effective against groups of light units such as zerglings, zealots, hydralisks, marines and some short-range armored units such as the roach. Being biological and a slow mover makes it easily kited—it is weak against the archon, stalker, marauder, and baneling.
Increases the attack damage of terran vehicles and spacecraft.
Increases the armor of terran vehicles and spacecraft
Increases the hellion's attack damage by +5 (to +11) vs light units and the hellbat's attack damage by +12 vs light units. The flame changes to a blue color.
The flame color on the icon was changed to blue in patch 1.3.5.
Allows the hellion and hellbat to transform between modes freely.
The Hellion/Hellbat transforms from one mode to another.
The ability is not smartcast.
- ↑ Cloaken. 2012-10-12. Balance Update #6 (10/12/2012) Heart of the Swarm Beta Discussion. Accessed 2012-10-12.
- ↑ 2.0 2.1 2.2 Blizzard Entertainment. 2012-12-20. Hellbat. Blizzard Entertainment. Accessed 2012-12-21.
- ↑ 3.0 3.1 3.2 3.3 2014-12-18, Hellbat Science. Blizzard Entertainment, accessed on 2014-19-12
- ↑ Spyrian. 2013-01-09. Beta Balance Update #11 – January 9, 2013. Heart of the Swarm Beta Discussion Accessed 2013-01-10.
- ↑ June, 2012, Starcraft 2: Heart of the Swarm "New Units" Explained by David Kim. G4, accessed on 2012-06-21