Green Pepper Bat Donburi

This is the tale of an earthling, who transmigrated as a dying third-rate god but somehow rose through the ranks, gaining followers and eventually causing the Fourth Great Apocalypse.
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"Have you ever heard of the God of Games?"
"The God of Games..?" Eleena shook her head in puzzlement. "I have never heard of Him…"
"What if the God of Games could give you the power to defeat your enemies?" Xi Wei coaxed patiently.
Eleena remained silent for a while, before resolutely lifting her head and fixing her gaze on Xi Wei. "Then I am willing to become a believer of the God of Games!"
"Belief isn't something to only be spoken by mouth. Close your eyes and envision His name in your mind, and feel His power with your heart," he said solemnly.
"O Master of Games, grant us new life!"

I Am the God of Games

It was not just the newbies—first-rate Players such as Edward's group who had been honed through many battles were startled too.

Even if it were a Boss template, why wouldn't a mere Level 35 monster not have a HP Bar?

After Gou Dan shared his analysis with Edward, the latter groaned for a moment before his eyes sparkled.

"I got it!" Edward exclaimed seriously then. "The absence of a HP Bar is a hint from the God of Games!"

"What hint? Are you saying that it's an ally? Its name is bright red through and through…" Joe couldn't help asking. "Even the two automatons we fought were yellow-names in comparison."

"No, the Tunnel Eye Serpent is definitely an enemy, but there are two reasons why it has no HP Bar." Edward explained to his party. "First off, the enemy's true form is not there: the big thing we're looking at is something like a shell, and the HP bar would only show up in its true form."

How Do You Fight Something Without A HP Bar?