How to test a ColecoVision controller's full buttons and number pad?

[phantasy]

Any Coleco experts?

I recently took apart a couple of coleco controllers to clean them and try to get some of the buttons working, restoring them basically- there is a great youtube tutorial on it too.

 

I've tested on:

 

-a PC with retro atari to USB and Sega to USB adapters

-a MIST fpga computer (hardware clone of old consoles and computers) tested with usb adapters AND the MIST's built in Sega/Atari/Commodore style control ports.

-a BlissBox adapter on a PC

 

In every environment, both controllers have working directional knobs and a working left fire button... they are cleaner, better and tighter now after the restoration. In all tests on real hardware (well a clone), and through USB adapters of all I know to exist, the controllers have no right fire button and no life from any of the number pad buttons. How else may I test them and even better get the remaining buttons to work. A great testing game that uses all buttons would be cool to know.

 

The only thing I don't have is an original ColecoVision to test with nor do I know any games that used them.