Where to watch online anime? Genre - Sci Fi Page 69 - Zoro? Right Here!

A great war occurred in the 20th century between humans and monsters. Since that time, the monsters rule the world in fear but keep relatively hidden from public view. A boy named Bokka ponders the past and wonders what became of the Meros Warriors who defended the world so bravely against the demons. He soon meets Kurofune and learns of the power of the Meros and the I-bar machines they ride in battle. Warriors are the only ones who can see and hear the Melody of Oblivion, a phantom girl hidden away waiting to be rescued and be the savior of mankind. During a battle between Kurofune and a demon, Bokka discovers something only his wildest dreams could possibly imagine...he too can hear that melody. Throughout his journeys, Bokka meets many monsters and their agents, friends, and companions as he discovers the true extent of his new powers. He must continue to battle evil in the hope of releasing Boukyaku no Senritsu and free a world that has forgotten its once beautiful melody. (Source: ANN)

On the hot summer day of August 14, Shintarou Kisaragi is forced to leave his room for the first time in two years. While arguing with the cyber girl Ene who lives in his computer, Shintarou Kisaragi accidentally spills soda all over his keyboard. Though they try to find a replacement online, most stores are closed due to the Obon festival, leaving them with no other choice but to visit the local department store. Venturing outside makes Shintarou extremely anxious, but the thought of living without his computer is even worse. It's just his luck that on the day he finally goes out, he's caught in a terrifying hostage situation. Luckily, a group of teenagers with mysterious eye powers, who call themselves the "Mekakushi Dan," assist Shintarou in resolving the situation. As a result, he is forced to join their group, along with Ene. Their abilities seem to be like pieces of a puzzle, connecting one another, and as each member's past is unveiled, the secret that ties them together is slowly brought to light. [Written by MAL Rewrite]

A young man named Akitsu Masato is captured by a secret govt. project known as "Last Guardian". He is told that his life as a normal student was all a lie, and that his real destiny is to be the pilot of a great robot called "Zeorymer of the Heavens". The truth of this is hammered in when Masato sees his parents accept payment for raising him. The Last Guardian is preparing for the resurrection of "Hau Dragon", an organization bent on world conquest. 15 years ago, Hau Dragon built 8 great robots. Each of the mecha represents a force of nature. However, before any of the robots could be used, their creater Kihara Masaki destroyed the robots except for the leader: Zeorymer. He took Zeorymer and an embryo to the government. The embryo became the boy Masato. Now, Hau Dragon has rebuilt the other 7 mecha and wants the 8th. It will be up to Masato and Himuro to pilot Zeorymer and fight against the Hau Dragon, but neither Masato or Himuro are all that they seem. (Source: AniDB)

The year is 21XX. Reploids are commonplace now, after Dr. Cain rediscovered Dr. Light's old lab and based several designs off of Dr.Light's original, called "Megaman X." X, meanwhile, has joined the Maverick Hunters, and works with unit leader Zero under the command of General Sigma. It is their job to terminate rogue reploids, those who have become violent. (Source: ANN)