Starting with TSB16, our TSB releases will no longer work the Retron5. RBI and other games will continue to work with the system.
Yes, well, they SHOULD! Hyperkin has firmware issues with the Retron5. Chances are our games will should up as "Unknown cartridge" but they are still playable. You will just need to select "Yes" to "attempt to run the game anyway." See the example image below.
Let us know if you still have difficulty. In most cases you will need to contact Hyperkin support directly, but we can always try to help before that step is taken.