I finally got around to playing this on Switch this past week. I bought the bundle that includes the base game and the new DLC pack while it was on sale back in January. I've now finished all three main episodes, most of the Bonus episode, and the Special Episode DLC.
Guess what? This is still a fun and charming game! It runs really well on Switch with maybe only one or two levels where performance takes a slight hit. The visuals are classic 3D Nintendo: crisp, clean, and cartoony. I know some folks don't like the aesthetics of the 3D Mario games, but I think it works really well here. This will be a game that still looks great ten years from now.
I played mostly in docked mode, but I did play a bit in handheld mode as well. Both work really well, but I think I preferred to play it docked. For one, it's a little easier to see what's going on with a larger display. The view usually defaults to a zoomed out perspective, giving you an overall view of the level. In handheld mode, some of the characters and details from this perspective can be very small and hard to see as a result. Thankfully, it is possible to zoom in closer to Captain Toad most of the time. There are two levels of zoom: one really close up and one that's about midway between the two extremes. I found that the middle zoom level was about right most of the time, getting me close enough to see Captain Toad better without sacrificing awareness of his surroundings. It should be noted though, that if you play a level that has the Double Cherry power-up, the view defaults to the zoomed out view and cannot be changed. This is presumably so that you can see all the Toads you're controlling on screen at once.
Additionally, I thought the touch- and motion-based mechanics from the Wii U version worked slightly better with the Pro Controller. The on-screen pointer, which uses the Pro Controller's accelerometer to move, felt more accurate and easier to use. When using my finger on the touch screen, it felt less precise, much like using your finger on a smart phone versus a mouse cursor on a PC. Additionally, using the touch screen meant I had to take one of my hands off the controller so that I could touch the screen. With the cursor, I could keep my hands on the controller and just aim. It was a bit of a hassle having to recenter the cursor all the time, but that was the only really downside to it.
Additionally, the game features several levels where Toad can spin parts of the level around using these special wheels. In handheld mode, you basically draw a circle on the screen with your finger to rotate the wheel. This works well, but again, you have to take your hand off the controller to do this. In docked mode, you rotate the controller in a circle with your arm. I found this takes a bit of getting used to. At first, I couldn't quite figure out what motion the developers wanted me to make. Once I figured it out, though, I found I could spin the wheels much faster and enjoy the benefit of not having to take my hands off the controller.
As far as the content goes, this is pretty much the same game as on Wii U, but with a few new additions. Obviously, there's the new DLC pack, which features about 18 new levels. Some of them are entirely new; some are remixes of ones from the base game. It's an extra $5.99, and worth it, in my opinion. The best part is that you don't need to play through the rest of the game in order to access it. Once you've purchased it, you can access it immediately.
The other major new addition I can think of is Pixel Toad. Once you beat a level, you unlock a challenge mode where you're tasked with finding a tiny 8-bit Toad character, who is hiding on one of the walls somewhere in the level. Once you spot him, you tap on him with either the cursor or your finger (depending on which mode you're playing in). If Captain Toad gets close to where Pixel Toad is hiding, you'll hear him making a noise that sounds like an 8-bit version of Nelson Muntz's laugh. I found the difficulty of these challenges ranged from absurdly easy, to maddeningly hard. I only had one instance where I had to look up where Pixel Toad was hiding, and I don't feel bad about it, because where he was hiding in a total bullshit spot. Surprisingly, Pixel Toad challenges are only available on the first three episodes — not the Bonus or Special DLC ones. I'm not sure why they didn't include him there. It seems like it would have been a fairly easy thing to implement.
Overall, I was really happy to play this again. I try to keep the number of Wii U ports I repurchase on Switch to a minimum, but this was one that I knew would be worth the money to get. If you haven't already, pick up this game and play it. It's one of Switch's best and most underrated titles.