Once in a lucky while, players of the mobile game Clickpocalypse llare offered a menu of options to give them a performance boost, ranging from "double potion lengths" to "nice boss monster joins your party." All they have to do to, the game explains, is watch a "super interesting and fun advertisement" to receive one of the rewards.
"I thought that would be a fun way to do it," says Jim Hayes, a hobbyist game developer who created Clickpocalypse."It also opens up the possibility for them to choose to get all of the bonuses and watch...