It’s rated T and I think that’s a fair rating. Cartoony shooter with bugs being the main enemy, robots at other times. All that is just to provide challenge for the main goal of mining minerals and such. The difficulty slider goes all the way down to really easy but there is no off switch for the enemies.
Overall I would say it’s kid friendly enough, as long as you don’t mind guns being used to squish bugs.
Yes, they sell the printer for a loss and the ink for a crazy markup.