If you want even more Captain Toad: Treasure Tracker to play in each level once you've ran through the game, never fear, the 8-bit Toad minigame is here. On Wii U this was locked behind an amiibo, but now comes as standard. You can press ZR on the level select screen and jump into any level with a fun new game. Here, an 8-bit Toad sprite will be hidden in the level, and you simply need to seek him out, and tap him, either on the Switch screen or using the controller gyro functions. He's hidden well in most stages, so keep an eye out!
Brick break
Just as in any Mario game, there are plenty of bricks that can be broken, but without his signature jump, breaking them down will be a bit harder. Luckily Toad can pluck and throw turnips which will break down the usual brown bricks, but big grey bricks are a more difficult story. They require a pickaxe to bash through, which will swing wildly like the hammer from Donkey Kong. You can pluck a pickaxe from a turnip patch, but before you collect it, make sure to identify where any grey bricks are so you can head over and smash through them.
Crown for Captain Toad
When you reach the 50th floor to complete 'Mummy Me Maze Forever' you will unlock a crown for Captain Toad to wear in any level.
Cut off parts
Be sure to look around each level several times before moving on. It is possible to cut off parts of the level when you progress.
Dropping in
One way you might be discovering new areas is literally dropping into them. Which makes sense, seeing as Toad can't jump at all. When it comes to ledges he can't climb, often the best option is dropping down into them instead. There are multiple levels where dropping down onto ledges and enemies will be the best way to progress - especially in the case of enemies, since Toad can defeat them by landing on their heads, but of course, can't jump.
Goals
When you go back in and tick off specific goals, you do not need to recollect the gems.
Helpful friends
What can make a game better? Friends! What can make a game worse? Friends! So, I guess, this could really go either way. You can play Captain Toad: Treasure Tracker all the way through with a friend by sharing a JoyCon half each. Player 1 will control the Captain, and player 2 will control the camera, and can also shoot an unlimited supply of turnip projectiles. This is nice, as your partner can wipe out enemies in a level, but not being under the control of the camera yourself can also be a bit of a miserable experience.
Taken for a spin
One of the most important things to do when dropping into any level in Captain Toad: Treasure Tracker is getting a good understanding of the level's layout. You can move your camera in a full 360 degrees around the stage, which will show you many hidden rooms, gem locations, and more. When going into every level make a mental note of every room and how to enter it. Even if you can't access it straight away, you probably will be able to as the level progresses.
Toad Stamps
There are a total of three Toad Stamps on the front cover of each Episode book. Successfully complete the indicated task to unlock the corresponding stamp.
First Toad Stamp: Successfully complete the episode.
Glittering Stars: Have all three Toad Stamps, then beat the Challenge Times for each level.
Second Toad Stamp: Collect all gems in the episode.
Third Toad Stamp: Successfully complete all Bonus Challenges and collect all gems in the episode.