Wario: Master of Disguise isn't a platformer or microgame collection like Wario's other games. While that's bound to put some people off, the game's real problem is that it stops being interesting after about an hour. Cutting down a chandelier with a laser is cool the first couple of times you do it but not the 100th time. By the third or fourth episode, you've interacted with the same objects and experienced the same set of eight minigames so frequently that the process of switching costumes and using the stylus becomes rote. Also, the game often feels tedious because there are so many puzzles and minigames in each tomb that it can take 30 minutes to an hour to complete an episode. Thankfully, the liberal placement of save markers means you can take a break if you like. The touch-screen controls probably weren't necessary and sometimes make the game more frustrating. In Kirby: Canvas Curse, drawing rainbows and capturing enemies was interesting because that stuff was possible only with the touch screen. In Wario: Master of Disguise, changing costumes and using abilities are the same sorts of things we've been doing for years in other games that use buttons for input. To complicate matters, the game has trouble interpreting the symbols you draw when you jot them too quickly or don't draw them in just the right way. It's usually not an issue, but it becomes an issue in rooms or boss battles that require you to switch disguises quickly. Transforming into the pirate captain when you wanted to transform into the space suit is not what you want to have happen when you need to fire off a quick laser blast.
Master of Disguise also has a few graphical flaws. Wario has a good variety of goofy animations, but the creatures and objects inside each tomb are plain and usually have only one stiff attack animation in addition to their basic walking animation. Backgrounds are colorful and have some nice animated details, but what you'll notice the most are the flat floors, spikes, and cookie-cutter switches that decorate the majority of rooms. One of the reasons the minigames are so tiresome is that they're all put together with a static background and with simple symbols and objects that usually don't move, apart from when you're physically dragging them across the screen. Audio fares a little better mainly because the music is sufficiently catchy and fits the theme of each environment. Sound effects are generic, although you'll hear a few recorded screams and Wario comments here and there as well. If it weren't for Wario's sprite and the amusing conversations that occur before and after each episode, you wouldn't know that Nintendo had a hand in the game at all.
Each tomb can take an hour to get through. Your patience will further be tested by seeing the same objects and minigames recycled countless times along the way.
It will take you about 10 to 15 hours to complete the main quest, which means the game is certainly as lengthy as any other Nintendo product. However, the bonuses and extras typical of Nintendo's games are missing. You can replay episodes to set better times and collect the treasures you missed to improve your rank and see an extended ending, but that's it for extras. Nintendo didn't even bother to include a competitive multiplayer mode, which is surprising because most Nintendo-published games have that feature.
When you weigh all the pros and cons, Wario: Master of Disguise is a passable puzzler that might tickle your fancy if you've felt deeply passionate about spatial puzzlers, such as The Lost Vikings or Exit, in the past. However, keep in mind that the game recycles the same puzzle situations and minigames frequently, and the touch-screen controls don't do much to elevate the experience. For those reasons and the overall lack of polish, most people will probably be better off avoiding Wario: Master of Disguise.