Look into the game’s configuration files to toggle "Free Play" mode, saving you from having to press a mapped "Insert Coin" button every time Ralph breaks the building.
Even with a “hot” download, you might hit issues. Here are fixes:
The Ultimate Guide to Fix-It Felix Jr. MAME ROM Downloads: Arcade Nostalgia Meets Modern Emulation
If you see a "MAME ROM" download, it is often a "wrapper"—a file that trickily launches the Windows version from within your arcade menu. 2. How to Actually Play It
Many users look for the "Genesis/Mega Drive" homebrew ports or the official PC flash-based versions adapted for cabinet use (often utilized via frontend software like CoinOps or LaunchBox).
Gamers immediately wanted to play it at home. Today, the MAME emulator makes this possible. Here is how to find, download, and run the ROM safely. Understanding the Fix-It Felix Jr. ROM
Place the felix.zip file into the roms folder within your MAME directory. Do not unzip the file.