Solid effort.
It's a pleasure to be reviewing your works again -- I apologize for taking so long to get to this flash, but I suppose we should be getting started.
I can't say this is my favorite of the Ratbag & Furball cartoons, but it's still a good quality effort. Like usual, my favorite part was the fluidity of the animation -- everything just looked like it... well, worked. Ratbag and furball have never looked better, and I commend you on keeping up the quality when so many veteran artists stumble.
As the series has went along, the animations have also become obviously more anime-ish. Whether that's a good development or not, I'm not sure, but I thought I should bring it up.
Next, the story -- you've had some great storylines in the past, but this one, though funny, wasn't it. The best scene was by far when both of them discovered the lack of a key ingredient ("WTF?" -- very nice job), and though the war part was of high quality, for some reason, it just didn't have the same lasting effect on me as the other cartoons have. I think Ratbag & Furball #04 had a better story -- but that's just personal opinion. :P
The sound was good -- the usual entry piece was the same, reliable good quality. Listening to Furball's stomach rumbling wasn't exactly aesthetically pleasing, but I'm guessing it wasn't supposed to be. The music in the first half of the piece definitely felt like old video game music (as you mentioned), but even though it went along sort of with the theme, it didn't quite do it for me -- it felt a bit too synthesized (I've been going to the Audio Portal too much lately to be totally neutral... :P)
Anyways, to sum it all up, it was another solid effort in the Ratbag & Furball series -- I'm not too sure if it was the best script or not, but it was still a good quality submission -- a job well done!