This manga is one of the worst I have ever read.

Ok, let's start with characters. You get detailed information and background stories to every f*cking single one. The story is usually the same. Some drama in their childhood and some pathos about being a 'survivor'. They're all terribly generic.

In all instances, that backstory is told during a action-packed fight in a misplaced flashback which is in no way necessary for the plot or the action happening. There are a bunch of characters who LITERALLY have less screen time than their back story. They appear for the first time, life for like 5 minutes before behind violently torn apart, but between those 8 pages on which they actually do something, there'll be 14 pages telling your their life's story. After they are then FINALLY dead, you are expected to remember their names for the rest of whole frickin manga.

Which brings us to art. In addition to having no depth, no development, no 'character', a great many of the characters look alike. The author draws like 5 hairstyles for men and 3 for women. The cast of characters is somewhere around 50 btw.
Apart from that, the characters are drawn anatomically correct, which is nice. The landscape is really boring (mars, duh).

The story. The story is mostly non-existent. It serves as a stage to showcase the different powers of all the characters, which is usually done by the narrator and much like typically shonen style. "Beaten to a pulp - but hey wait my insect has an even crazier superpower so haha, jokes on you!".
That would be somewhat interesting, if the ratio of narrating and actual dialogue wasn't like 9:1. SERIOUSLY! If anything is said in dialogue, it WILL EVEN BE REPEATED BY THE NARRATOR. It makes me wanna kill myself!

And those powers. In one hand, the narrator explains painfully dry and technical how all those powers work, everything in this manga is based on biology or science or evolution - EXCEPT ITS NOT.
It's so incredibly stupid. After leaving some cockroaches alone for 500 years they're black humans. They also have a magical organ which can morph you into a giant hornet.
But all that stuff doesn't really matter. Because if anyone would actually give a sh't about the plausibility of the story.. well, after three testruns, they already accomplished immortality, mass-murder-capabilities, and cloning. Which essentially renders the whole operation obsolete. But no, send them to fricking mars against 200 million cockroaches with a single frickin ship which has no weapons, even though you have dozens of warships with crazy lasers and shit which.. well, you send there one week later after everything went to shit.