KamiErabi GOD.app Episode [1]

Goro's life isn't going all that well, and he's frustrated at not being able to act when he thinks he ought to. After watching a cat get hit by a truck and noticing that no one else tried to help either, he goes home to find a strange new invite on his phone. When he accepts it, a tiny oni-like creature named Lall appears and tells him that he's become one of many people vying to become a god. Granted one wish by the app, Goro now has a special power to use to fight against the other competitors.