If you want to create your own monsters and arrange musical fights without rules, then FNF Apollyon (Sonic.exe) mod will provide such an opportunity. The science of the future has advanced significantly, and the mystery of DNA has been revealed. Now you can change the code and create monsters yourself. Head straight to the secret lab and get to work. Your creation will have incredible and unique abilities.
Cross the genes as you see fit in FNF Apollyon (Sonic.exe) mod, let this creature make your opponent tremble in fear. Once the experiment is over, take him to the music ring. The strongest must win this battle. Prove that it is your hero who deserves the title of winner and the honorary cup. Good luck to you and your hero.