Forced to watch ads or given rewards for watching ads.
"the gane is 100% playable without Internet, BUT it pops up with a screen with ¿do you aceppt ads? with a red saying yes and a green saying buy anti ads"
"A reward for premium currency is offered by watching (usually multiple) ads. The ads are optional, but there is an element of missing out if you don't as premium currency is used everywhere."
"2 ways, 1 is exactly what it sounds like and 2, the characters have dreams (see my review on wait to play for context) about games made by outfit7. (outfit7 is the one who made this game)"