Pac-in-Time

The Good
Both graphics and music have very good quality. I actually don't see any real difference in style between the two music options - each melody sounds different, but I wouldn't say all "Classic" tunes and all "Fun" tunes share a certain style. Anyway, most of those melodies are a real pleasure to listen to. Just check out the Forest levels tunes - the joyful "Classic" melody and the quite mysterious "Fun" one.
There are many hidden bonus levels in the game - all sharing the same idea: collect as many coins as you can within a short time limit - but it seems their number sharply decreases in later levels. Sure, they also become more difficult, so that you have to think about survival and not bonuses, but I haven't seen any bonuses in several later levels. In the beginning there are even a few levels with more than one secret room, later there are whole series of levels without any secrets.
Many levels require at least a bit of using your brain, it's not a simple run'n'jump platformer. Using blocks to get to a higher place, pulling bricks to make water flow, sitting on a log to cross a river with a strong current... A few times I was't sure what to do in a level when I first got there. My mum usually tended to think something like "all games (except those I like, such as computer bridge) are either brutal or dumb" - "Fury of the Furries" is a good proof that even relatively simple games expect some clever thinking from players.
The game has lots and lots of little touches such as background details, but it's not just the background. It's very interesting to see how the exact shades of the Furries vary in different stages. Four colors are available (of course, not always at once): the yellow Furry can shoot fire, red can eat through some walls, green can use a rope for swinging over obstacles or pulling bricks, blue can dive and shoot bubbles. However, when I write, for example, "green", I don't always mean the same - the color varies from lime in the Desert to dark green in the Factory. Blue changes probably the most - violet-blue in the Desert, dark blue in Pyramid or Village, bright blue in the Mountains or Castle... And another detail I just love: those funny faces the Furries make. When you're not doing anything for a while, the Furry will make some funny faces - which exactly, depends on color and chance, for example the green Furry may start skipping a rope or wear shades.
Almost at the end you're in for a surprise: Castle level 10 isn't the end of the game! For a long time I didn't know that when you complete the Castle, a strange machine will rise out of the sea, offering another unexpected stage. And if you manage to complete it (some parts are super-hard, almost as hard as a terrible level mentioned in "The Bad"), you'll discover the end screen is interactive too. The clock is invisible, but you have about two minutes to walk, jump and swing through the lovely scenery.

The Bad
Sometimes a bit too tough. I doubt if I could ever complete the game without a bit of cheating... (I tried.) Many levels are hard, but Castle level 9 requires incredible accuracy. And you can't get tired, you have to keep shooting fireballs and evading bullets until the opponent gives up.
I liked the music very much, but at a few points the game seems hastily assembled. A few melodies repeat themselves, for example the Village "Fun" tune is the same as Desert "Classic" tune - another proof there's not really a consistent difference in style between those two musical options. And one of those repeated melodies suits its stage as bad as it could - it just doesn't suit the stage's atmosphere at all. It's hard to believe that with so many nice melodies the developers couldn't have had the composers prepare two or three melodies more...
The game only saves, and it saves automatically, at levels 1 and 6 of each section.
And definitely the biggest drawback: only four save slots. It can be a problem when you get further and you'd love to be able to look at the previous levels again... The whole save system is just too uncomfortable.

The Bottom Line
Despite drawbacks such as the uncomfortable save system, this game just has the atmosphere and magic which make it so special. It's hard enough to be frustrating at times, but even then the game's aesthetic quality make this frustration manageable.

(Note: I wasn't fully satisfied with my review, so it has been edited and resubmitted.)