Creating a physical cartridge for the Commodore 64 is always satisfying, but making one for The Goonies requires extra care. In the latest video, 8Bit Retro Refix walks viewers step-by-step through a Goonies cartridge build, explaining how to handle larger file sizes and specific chip requirements.
Preparing the Chip
The process begins with programming a 27C020 EPROM chip. Since The Goonies runs at 128K, it fits directly without duplication, saving time during setup. The video highlights using the chip reader, erasing, programming, and verifying the file before moving on to the hardware assembly.
Building the Cartridge
With the chip ready, attention turns to the PCB. This part involves placing and soldering components such as the 74LS273 and 7402, with sockets added for flexibility. The video clearly explains jumper settings needed for larger files, including adjustments for address lines. These careful steps ensure that the cartridge works seamlessly once completed.
Final Assembly and Test
After soldering and setting the jumpers, the EPROM is seated, and the reset switch secured. With everything in place, it’s time to test. The cartridge is slotted into the C64, and the familiar Goonies theme plays—proof that the build was successful. The result is a working cartridge, demonstrating how larger games can be handled with the right chips and board layout.
Final Thoughts
This Goonies cartridge build video is both instructional and entertaining. Between practical soldering tips and lighthearted nods to the film, it strikes the right balance for C64 fans interested in making their own cartridges.
