Exploration Tool
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Exploration Tools are customizable user interface elements in Yoshi and the Mysterious Book. They can be freely overlaid atop the screen on a 15×8 grid; the exact shape and size of each exploration tool varies. Once placed, they provide information about the current state of Yoshi and the environment.
A total of 56 exploration tools are available. Four of these are badges, which are unlocked by reaching milestones in the game. By exchanging 5 Smiley Flowers, Mr. E can invent and thus unlock one of the other 52 exploration tools.
| Tool | In-game description |
|---|---|
| Life Gauge (20 ❤️) | See Yoshi's health as expanded hearts. |
| Life Gauge (10 ❤️) | See Yoshi's health as condensed hearts. |
| Smiley Flower Radar (Omni) | Track the location of the nearest Smiley Flower. |
| Smiley Flower Radar (Cardinal) | Track the direction of the nearest Smiley Flower. |
| Smiley Flower Radar (Small) | Track the nearest Smiley Flower. |
| Winged Cloud Radar (Omni) | Track the location of the nearest Winged Cloud. |
| Winged Cloud Radar (Cardinal) | Track the direction of the nearest Winged Cloud. |
| Winged Cloud Radar (Small) | Track the nearest Winged Cloud. |
| Fruit Radar | Track the type and position of the nearest fruit-like food. |
| Apple Radar | Track the location of the nearest apple. |
| Hot-Pepper Radar | Track the location of the nearest hot pepper. |
| Watermelon Radar | Track the location of the nearest watermelon. |
| Note-Fruit Radar | Track the location of the nearest note fruit. |
| Heart-Turnip Radar | Track the location of the nearest heart turnip. |
| Hard-Seed Radar | Track the location of the nearest hard seed. |
| Nut Radar | Track the location of the nearest nut. |
| Bioscanner (Square) | Track the location of nearby creatures. |
| Bioscanner (Circle) | Track the location of nearby creatures. |
| Bioscanner (Distant) | Track the location of distant creatures. |
| Name Plate (Simple) | Display the names of nearby creatures in a simple style. |
| Name Plate (Fancy) | Display the names of nearby creatures in the book's style. |
| Speedometer (Horizontal) | Track the speed of Yoshi's horizontal movement. |
| Speedometer (Vertical) | Track the speed of Yoshi's vertical movement. |
| Speedometer (Omni) | Track the speed of Yoshi's movement in all directions. |
| Scale (Measure) | Measure weight by needle movement. |
| Scale (Balance) | Measure weight by plates and fulcrum. |
| Scale (Spring) | Measure weight by spring length. |
| Heart Rate (Waveform) | Measure Yoshi's heart rate via waveform. |
| Heart Rate (Beats) | Measure Yoshi's heart rate via heartbeat. |
| Taste Sensor (Triangle) | Use a triangle chart to judge flavors of things Yoshi eats. |
| Taste Sensor (Bar Graph) | Use a bar graph to judge flavors of things Yoshi eats. |
| Step Counter | Track the number of steps Yoshi takes. |
| Water Quality (Bowl) | Display the quality of any water Yoshi enters. |
| Water Quality (Beaker) | Display the quality of any water Yoshi enters. |
| Tilt Meter (Needle) | Measure degree of tilt via rotating needle. |
| Tilt Meter (Number) | Measure degree of tilt via markers and numbers. |
| Altitude Meter (Large) | Track Yoshi's vertical position. |
| Altitude Meter (Small) | Track Yoshi's vertical position. |
| Azimuth Meter (Large) | Track Yoshi's horizontal position. |
| Azimuth Meter (Small) | Track Yoshi's horizontal position. |
| Thermometer (Liquid) | Measure temperature via liquid gauge. |
| Thermometer (Meter) | Measure temperature using a needle. |
| Discovery Counter (Radial) | Track creature discoveries via radial progress bar. |
| Discovery Counter (Percent) | Track creature discoveries through percentages. |
| Discovery Counter (⭐️) | Track creature discoveries by their star rankings. |
| Egg Counter (Type) | Show a list of the types of eggs Yoshi is carrying. |
| Egg Counter (Log) | Show what Yoshi ate to make each egg. |
| Egg Counter (Total) | Show how many eggs Yoshi is carrying. |
| Clock (Digital) | Track elapsed time via digital clock. |
| Clock (Analog) | Track elapsed time via analog clock. |
| Message Log (Large) | Keep a log of Mr. E's running commentary. |
| Message Log (Small) | Keep a log of Mr. E's running commentary. |
| All-Creatures Badge | Proof that every creature in the book has been named. |
| Completed-Entries Badge | Proof that all creatures, special studies, and challenges have been explored. |
| All-Smiley Flowers Badge | Proof that all Smiley Flowers have been obtained. |
| Completed-Book Badge | Proof that the book has been fully completed. |