Thank you very much! We're really glad you like Amiga Man and that you're looking forward to future updates.
Just to clarify, Amiga Man is being developed for ECS hardware (and it should also run on most OCS Amigas), so we're trying to make the controls work well on the widest possible range of classic machines.
We did experiment with using the second button for jumping, but it introduced conflicts with some of the other gameplay mechanics and movements. That's why the current demo still uses the original control scheme.
It's definitely something we'd like to revisit, and we'll try to implement optional second-button jump support in a future version if we can do it without compromising the gameplay.
Thanks again for your feedback and support!