I Make Games Inside a Mobile Game?!

Carl transmigrates into a wildly popular mobile game, only to end up as a disposable fodder character. To survive, he must compete with other popular characters for the players’ favor. Otherwise, his fate is nothing but death. But if players play games for fun… Then why not just make a bunch of highly rewarding, genuinely fun games inside this mobile game? Games should be fun, after all. And so, players gradually begin to realize that the various mini-games built into this mobile game… are actually more entertaining than the game itself. — Description from novelcodex.org