Hi Many Thanks for Your report... I Hope that the creator of the scorpion Engine will find a solution with that adaptator because Your game is verry Nice... This adaptator USB to DB9 is compatible as CD32 PAD. I used the latest WHDLoad 19.2 and the slave included in Your Package.
Edited :
The problem is not due to the Slave or WHDLoad because with your alternative version, when launching the Game file, I get the same problem when the TOM+ is present... the fire button has no effect on the start menu. Your Latest version (02/11) didn't change anything.
Have a good day,
Pascal