Thanks for all the feedback!
A quick check reveals that libgdx.jnilib is indeed missing from the mac native jars.
Indeed it is... Unfortunately I don't own a Mac and can't build it myself.
controls blow using a notebook imo
Right, it's almost impossible to play without a mouse. I'll think about keyboard-only controls, with Liero/Worms style aiming.
can you make the levels a bit wider (maybe scrolling?) so I can get to some good sniper spots?
My base idea was to make it an one-screen shooter, so I probably won't add any real scrolling.
But how do I shoot?
Aim with your mouse, shoot with left mouse button. It's all explained in the tutorial.