Both Spirits of Hell games are fan‑made projects that do not generate revenue; they are distributed for free. The developer has explicitly allowed free distribution of the final English and Russian versions. However, the use of SEGA’s copyrighted characters (Sonic, Tails, Amy, etc.) is technically a copyright infringement, though SEGA has historically tolerated non‑commercial fan games as long as they do not monetize the IP.
To understand Round 2 , it helps to know where it fits in the series:
Open your device's File Manager and enter your Downloads folder.