Another way to increase player spending and engagement is to introduce promotions or special events linked to the gacha system. In-app purchases and virtual goods can be supplemented by game developers receiving additional revenue through advertisements and sponsorships. Developsatta king siteers are able to monetize their games through the integration of ads, which they can earn from player interactions. Many ad formats, such as banner ads, interstitial ads, rewarded videos, and native ads, can be used to accomplish this. Because they give users the chance to earn in-game rewards by watching brief video ads, developers have found great popularity in rewarded videos. Through collaborations with companies or advertisers to feature product or service advertisements in their games, developers can also use sponsorships as a way to make money.