File:SSBU Wily Castle.png

Summary
Wily Castle image from the Super Smash Bros. Ultimate official site (7/17/2018 entry).

Site description: "Hazards from the previous games for both Nintendo 3DS and Wii U will appear on this stage. The Yellow Devil will cause a big explosion when it's defeated, but the player who landed the final attack doesn't take any damage. Use this to your advantage!"