I watched this when I was younger, it used to be aired on Animax Latinamerica (México) and I thought it was okay. But I finished it now as an adult, and all I can say it’s that is irredeemable garbage. They might’ve done something better, they took elements from a lot of sci-fi classics like Planet of the Apes, Star Wars, etc. but even if it could've never been a masterpiece, it could have been way more decent, but no, they just did random twists and turns that led to nowhere. It's a shame, I thought it was going to have a depressing, dark endingthat might actually leave room for a sequel, perhaps one with time-loops, alternative versions, etc., since it involved time travel already, but, nope, just a generic ending.