"this is the only guy i know who can reload a machine gun in his sleep."
You clearly don't know me. ;)
Anyway... Am I the only one who noticed that once you buy the first shelter, you can just ignore everything completely? Just fix the balloon in between waves, and you'll be done before you meet any enemies that can hurt you in your shelter.
"The last door continues in chapter." Chapter what? Does it say that for anyone else? Great game though, great series. Great heart attacks. It would be nice to walk a little faster, like you do in the scene outside the mausoleum.
"Fun fact: Each module has a secret square you can collect from one of its stages by lining up things in the background instead. Collect one from each module and you'll unlock a new "hidden" one! To get you started, the one for mod_a can be found on its 5th stage. Have fun :)"
Lovin the frogger level.