The best of the show is the animation which I'm now going to give a very fair 5/10. Yes, that's right, the best this show has to offer is it's 5/10 animation. It's the same as the previous. It could not be more average if it tried.
Music is still the same monotony and now gets a 4/10. It just doesn't service the show at all. I'm pretty confident I heard some samples taken straight from Logics sample library, which is perfectly fine, but highlights the laziness of the music writing. Maybe it was rushed due to deadlines, who knows. What we do know however, is it is garbage.
Now, this terrible story;
Firstly, I want to ask why is this called 'revenge'? Revenge for what exactly? Literally, no revenge takes place so if someone could please tell me what 'revenge' took place that would be great.
Secondly, the flashbacks to the team mates normal life prior to their mars visits are long, too frequent and add absolutely nothing to the enjoyment of the show, the character development or, my emotional connection to any of these people. I know it's only a 13 episode show, 26 if we include 1 and 2, but there is no character development AT ALL. They are the exact same lifeless characters that landed on mars in season 1 as they are at the end of season 2. As mentioned above, it's difficult to get any emotional attachment to these people as a result. I honestly could not care less who does or when. The reason we watch this beautiful medium is mainly due to the incredible emotions it makes us feel and the rollercoaster it takes us on, this garbage however, is as much of an emotional rollercoaster as the drive to the theme park is.
Finally, and I'll be quick, there is attempts at comedy here too.....I'll say no more.
Story 2/10
In summary, don't watch this. If you are here because you watched season 1 and want to know what happens next, it's not worth it. Save yourself 13 episodes of monotony and spend it on something that deserves your time.