Megabrain

Megabrain is the final boss of the game Radiant. Like the deceased Psychic Commanders, Megabrain acts as the commander to all of Supercreep's army. He has supreme intelligence and extremely strong psychic powers, allowing him to see the past and predict the future. He also claimed that he knew everything there is to know. It was him who revealed to Max Blaster about how the future ended up being ruled by the aliens.

When Max came to the future, Norton said from the past that Max's spaceship Radiant is malfunctioning, therefore teleporting him to the future. Max can only see aliens in the future, and no human. While Norton tries to bring Max back to the past, Max is assigned with the task to investigate why no humans can be seen.

At the end, Max finally met Megabrain. After he defeated Megabrain, Megabrain explained how it happened. He said that when Max goes back to the past, it will open a crack in the time-space continuum allowing an enormous amount of aliens invade the humans. The humans got overwhelmed and the aliens ruled the universe. Norton then contacted Max saying that they can now teleport Max back to the past. Knowing that his return to the past can result in a catastrophe, Max tried to stop Norton. However, Norton didn't listen--he continued. Then, red letters saying 'Game Over' appeared on screen. What happens next remained unknown.