The objective of this event is to destroy a massive Boss Robot. The team consists of 3 Brawlers. If a player gets killed he will respawn in 21 seconds - it's a long time, so be careful to stay alive. If all 3 players die at the same time, the game is over.
The Boss Robot has several abilities that improves over time and as you level up.
Angry: Once the game starts there is 95 seconds countdown warning when the Robot will get angry. This increases his damage output, speed, and the difficulty of dodging his attacks. It's advised to make damage as fast as possible because the game will only get harder over time.
Melee attack: Regular melee attack, he punches the targets close by dealing a damage of 800+.
Laser attack: The Robot fires a spread of lasers dealing a damage of 1200+. If he is angry, the laser can break walls.
Charge: The Boss "charges", he runs just like Bull's Super Attack. He will knock down Brawlers and goes through walls.
Long-range rocket: The most annoying and difficult attack to avoid. He fires a big rocket on the farthest Brawlers dealing damage dealing damage of 2000+. The target is displayed on the ground, giving some time to run away, but on Insane level the rocket is quite fast and slower Brawlers might have a hard time running away. The area of impact algo burst into flames for a few seconds.
Furious, Enraged, God Mode: As you keep progressing to new levels (Insane+), the the Boss Robot gets getting angrier. He gets "furious" at the 3:10 mark on Insane level. He gets "Enraged" on 4:55 and goes to "God Mode" at 6:35.
The event is always unlocked on "normal" level. If you beat the boss, you automatically level up the challenge, so the next time you play the game it will be harder. There are currently 5 levels and each one unlocks new abilities for the Boss Robot.
The last level, called "Insane", is actually pretty hard and this one keeps progressing (Insane I, Insane II, etc). It's not clear if there is an actual limit, players have gotten to Insane V and it's rumored go to up to level XVI.
Here are the complete stats and changes to each level:
|Level:||Boss Health:||Reward:||New ability:|
|Normal||250,000||30 Tokens||Melee attack, laser attack, summons regular robots found in Robo Rumble|
|Expert||400,000||50 Tokens||Starts getting angry, does more damage, summons purple robots|
|Master||500,000||60 Tokens||Long-range Rocket|
|Insane+||600,000+||70+ Tokens||Get Furious at the 3:10 mark, lasers break walls when furious and higher, drops Power Cubes, summons stronger minion robots.|