I said a while back about the default controls being a bit "iffy", with jump being "A" not being the first button to come to mind, but if space were jump, "A" were stab, and "S" being shoot, with the rest of the controls remaining as is, would that not make the controls easier? Yes, I know that you can change them yourself, it's just a lot of people would generally be too ignorant/busy/important/full-of-themselves to notice that feature..
Erm, just noticed in the tutorial that you say that jump is "A" to allow entering doors with up. Why is entering doors not "A", and jumping not up, as default?
Well, I don't have time to play it, but I'm favouriting it for now, and I'll play it when I'm back from boarding school. Also, I finally finished the first Raider on hard. Pity you can't subscribe to developers..