Banglar is the main villain of The Ninja Warriors and it's remake The Ninja Warriors Again, as well as it's prequel Aqua Jack: indicating that Aqua Jack and Ninja Warriors share the same universe.
In this game, Banglar owns an army with heavy armored vehicles (helicopters, tanks, armored trains and hovercraft. He uses his military powers to attack a city in an attempt to seize power, prompting the heroes Aqua Jack and Aqua Jill to fight his forces. After the heroes destroy the wall protecting his base, they invade his office and gun him down, however the one they shot down is revealed to be a robotic double, as Banglar had already escaped the place, showing up on a screen and taunting the heroes.
The Ninja Warriors/The Ninja Warriors Again
The current president of the unnamed country where the game is set, Banglar quickly turned the once prosperous nation into a nightmare, oppressing people with his military forces and brainwashing them into submission. A small resistance force, led by the charismatic Mulk, started a plan to overthrow Banglar's regime. They started developing cyborgs, which would be tasked with infiltrating Banglar's forces and kill him.
The cyborgs, which were named the Ninja Warriors, were finally completed, and were about to enter the testing stage. However, the tide turned against Mulk, as Banglar's forces finally found his hideout and started attacking immediately. With no option left, Mulk decided to send the Ninja Warriors to fight without testing them.
The Ninja Warriors successfully defeat Banglar's forces, invading the government palace and killing Banglar. With Banglar dead, the Ninja Warriors self destruct, destroying the entire building. Banglar's death causes a revolution, with Mulk becoming the new president. However, Mulk further develops his cyborgs, which in the end become a force far stronger than Banglar's military power. And so, history repeats itself.