Just bought the game and tested linux version. Here are some bugs I found:
1. When configuring controls with game pad (xbox 360) game saves the same button for fire and jetpack even if I set 2 different ones, had to edit the config manually.
2. Game crashes if I move the right stick.
3. Game crashes on beach front #1 when I pickup heart.
If you could file some bugs on GitHub:
https://github.com/stephenjsweeney/blobwarsAttrition
When you pick up the heart, does the game show a trophy alert? It could be a problem trying to save a screenshot (you can turn this off in the options screen). I'll see what I can find out with the controller bugs. I used a single stick SNES-like controller for development.
