Thanks to the developer of this Mario’s Castle (SMB1 Hack) rom/ Emulator for submitting the file here, so others can also enjoy it. Its just 29.8KB only, and it's been downloaded 1895 times, you can imagine its popularity from the number. I request you to provide the suitable rating to this Mario’s Castle (SMB1 Hack) file, It will help us to improve.
NOTE: All the Roms/ Emulators available here are submitted by the users, we have tried our best to verify the files, and only the files which are secure are made available. Some antivirus mistakenly assume these files as virus and warns you. But I assure you these files are safe and you can use it.