Originally Posted by Sune Salminen
I bet there are similar carts available for the C64 though.
Not exactly. The equivalent device would be something like the now discontinued MMC64
or its successor, the MMC Replay
. From them you can launch most cartridge images (crts).
By the way, anyone that finds the Behr-Bonz of interest may be also be interested in a far more advanced cartridge called the VIC-20 MegaCart
(that webpage is quite out of date, I'll see if I can't get it updated this weekend). The cartridge will cost closer to $100 Canadian dollars which include a custom cartridge case with label art and a full colour printed box and should be available in the next few weeks.
The big difference is that it has 200+ games (every game ever released on cartridge for the VIC-20 which includes everything in the Behr-Bonz) as well as dozens of other games, applications, programming languages, utilities, demos and more. It can also function as any of the RAM expansion cartridges released for the VIC-20 from 3K to 32K, has a built-in reset button and non-volatile memory. Oh, and it automatically adjusts for use in either a PAL or NTSC VIC-20. I'm really just scratching the surface here. I'll explain more if there's any interest.