The most common version of Mini vMac is designed to emulate the (released in 1986). Consequently, the standard file you need is a copy of the Macintosh Plus ROM.
Using one of the methods in Part 3, secure a valid MacPlus.ROM file. Ensure the file size is (for Mac Plus) or 128 KB (for original Mac). Any other size indicates corruption.
You can obtain a Mini VMac ROM from various sources:
