Another release!
getKeys, scrolling, a few more pxl-commands, rudimentary pointers and constants (using L1-L6 for lists, mostly), a bunch of math commands, and a few more control structures were added.
Download here:
http://dl.dropbox.com/u/10645749/axe-interpreter_v0.2.zipExecutables for Linux and Windows along with source code should be included. (Tested on Windows 7 (64 bit) and Linux Mint 11 (32 bit))
I then whipped up a quick tunnel game below, which you can watch below

(Hmm, the embedded youtube video is a bit too small. Is there a way to make them bigger?)
(
Edit: Weird, you can't see the mouse.)
Additional notes:
By default, a few keys are mapped to getKey -- for example, pressing backspace maps to 'getKey(15)', for example. Included in the folder should be a file named 'keybindings.config' which can be edited to change which keys maps to which getkey. That file has to be in the same folder as the exe.
You can use the '{ }' brackets and L1-L6 for lists and pointer stuff, but currently changing L6 or L3 doesn't change the buffers yet.
Using @OPEN "filename" (you have to include the quotation marks) can open files directly inside the interpreter. If you use those commands inside files, I guess that would work as a sort of substitute for imports/subroutines, at least until I have legitimate imports, subroutines, labels, etc. working.