The game is well-made and fun, but contains some combinations reinforcing outdated and unfortunate stereotypes, especially for younger children who often takes things literally.
One example — Combining “Demigod” with “Man” creates “Hero”, but combining it with “Woman” creates “Mermaid,” implication being that only a man can be a hero. It goes step further with “Hero” + “Woman” = “Life” (aka physical intimacy) whereas “Hero” + “Man” = “Friendship.” I imagine this may feel discouraging to girls who’d rather be a hero than be a mermaid, or not have their encounter with male hero end in a hookup.
As an adult, I understand that these combinations are to be taken lightheartedly as one representative examples out of many possibilities, and that their aim is to add more combinations to the game. I find it a bit unpleasant regardless. Adding more combinations can still be achieved while avoiding such negative implications through having multiple results (ex: “Woman” + “Demigod” = “Mermaid” and “Hero”,) which is a mechanic already used in other combinations. There are other examples in addition to the ones I mentioned, so parents of young children playing this game may want to provide them with context.