Star Fox Zero released just a few days ago for Wii U and of course Fox McCloud is the lead once again with you using him throughout the game. However, there is one hidden mission that gives you control of Peppy, and we have details on just how to do so.
This mission does have a prerequisite that you must meet first, which is completing the Fichina mission. By completing this mission, you will get the Gravmaster upgrade for your Landmaster vehicle.
After getting this, go back to Titania and play until the point where Slippy starts talking about Peppy’s signal. At this point, you’ll notice a portal of some sort in the background that you must fly up to with your new Gravmaster upgrade.
Upon getting up to the portal, you’ll see a cutscene that will then transition you to the new mission where you have control of the barrel roll loving Peppy.
This is more than just a little mission, but an actual battle against a huge ship where you must take down 14 cannons that are spread all across it. Making this even better is that even time you use a barrel roll, Peppy yells out “barrel roll.” While this would get a little annoying if it was in every stage of the game, it serves as a nice little nod to his classic line from Star Fox 64 in this one mission.