Well - no aswers here I see, but problem is even more fascinating. I am not sure if anybody can help me with this. It occured that this is not a keyboard problem. Because after playing you can use keyboard to write your name in the hall of fame. BUT it seems that somehow ( I am not sure how it was in original DOS experience of Turrican 2) if you play joystick you have all buttons on joystick, not like it was on for example Amiga it was together joystick and keyboard, so u used spacebar to make rolling star, but here you have assigned buton on joystick to make so (we tried this on normal Saitek Cyborg).
Tops Star sv-127 old digital 8bit games joystick is visible as 2axis, 2buttons one when in fact it has only ONE button. Because autofire button is visible in windows testing program as blinking buton 1! So it seems that DOSBox has virtually assigned non existent in this joystick button 2 as spacebar!

I am curious is this a way to make DOSBox recognize this kind of joystick properly and use spacebar normally on keyboard even with choosing joystick controls?

Any thoughts!!!?

You could try using the DOSBox keymapper to map the joystick button to keyboard spacebar.

Well it would be great idea, but both buttons are very needed in Turrican 2 - normal fire and autofire (which has better rate of fire)... And this is big problem 🙁