Really cool project rojohound!
Anyway, here's some errors I got:
8 bit issue (seems to happen with spritesheets, but not single images. 24bit png works fine):
*** EXCEPTION ***
Failed to load image "images/enemyspawner-sheet0.png". Reason: PNG not supported
: 8-bit only
File "<string>", line 261, in <module>
Press any key to continue . . .
Also, anything with keyboard commands won't run. Maybe you could allow such projects to boot, even if the controls don't work yet?
EDIT: curious about newts question. Does your framework support effects?