Facebook group you can ask question there.
Around 20 different robots that have different ranks C>B>A>S>SS, you can upgrade all robots to SS rank but it going take some time. When you get them to new rank one of skills will be modified as a new skill. Like all f2p phone games it have lottery where you can get exclusive high rank robots but since we don`t have full skill list idk if they great or just fine. You can get cash shop point by logging each day/do daily quest (need check that again, not sure now)/do missions/from friend point lottery. Atm i saving them to buy custom pilot Astana who have 10% bonus to gold and points, she cost 100 cs points. Game work on Bluestack.
Game have 3 modes -
1: Mission one, each of them give cash points for first time finish, high lvl ones very hard without luck/high skill.
2: Unlimited Mode, here you going spend most of your time
Basically mode for grind.
3: PvP mode, only 1 vs 1 with mobs from both sides. I been try enter pvp for few days but never get there =\ some people have similar problem.
After you make account be sure to save restoring key (you can see him in settings) it your login and password.