"Uncle Grandpa: History by Attack Light!!" is a video game in app iPod touch, iPad and iPhone. It aired on Fall 17, 2015.
Brief Cameo CharactersEdit
- The title card game is seen, the title reference is to Steven Universe: Attack the Light. But it also a parody character called: "Evil Light".
- History by Attack Light!! is also has 2 exclamation points everyday in this game app.