List of hidden blocks in Super Paper Mario
In Super Paper Mario, Mario can discover Hidden Blocks throughout the areas he visits. Like regular ? Blocks, these invisible blocks contain coins, items, and even one enemy. Mario can locate them by using Tippi's ability (by pointing the Wii Remote at the screen). However, Mario can still uncover them himself without her. Unlike the previous two entries, the ? Blocks (which includes hidden blocks) respawn upon leaving the area, so subsequent visits allow the contents of the blocks to be collected again. Some invisible blocks are used as stepping stones to reach new places or other items. There are 18 hidden blocks in the game. This page lists the location of each hidden block, the contents, and how to get to them.
Hidden Blocks
| Location | Item | Description | Image | Image (block/s revealed) |
|---|---|---|---|---|
| Lineland Road |  Mushroom |
In the third scene, near the end is the group of five blocks (1 ? and 4 brick), this hidden block can be found above the last brick block. | 
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| Yold Desert |  Coin (both) |
In the third scene, after being dropped from the first flipping rectangles, these two blocks can be found as 2nd and 4th blocks in the 4 block row directly behind Mario. | 
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| Yold Desert | 12 Coins |
Same scene, near the end of the scene is a pipe on the block platform. In the room after the pipe is a row of 7 ? Blocks. This hidden block can be found above the fourth one. | 
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| Gloam Valley | Coin |
In the fifth scene, after crossing the water, there is a ? Block and block collumn. This hidden block is found between said collumn and two brick blocks. | 
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| Planet Blobule | Coin |
In the first scene, after falling down after second Longator. | 
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| Planet Blobule | Mushroom |
In the Blollop's house, accessed by a futuristic door in the second scene. | 
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| Planet Blobule |  Speed Flower (1st), Coin (rest) |
In the scene accessed by a first star door in the second scene, near the end. | 
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| Planet Blobule | 7 Coins |
In the Blarfle's house, accessed by a futuristic door in the scene accessed by a first star door in the second scene. | 
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| Planet Blobule | 7 Coins |
In the Blappy's house, accessed by a futuristic door in the fourth scene. | 
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| Gap of Crag | Mushroom (both) |
In the second scene, left of the rightmost door, above the block platforms. | 
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| Floro Caverns (5-3) | Coin, Mushroom |
In the third scene, near the beginning between two stairs made out of hard blocks, left of the group of 3 brick blocks in the air. | 
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| Floro Caverns (5-3) | Coin |
Same scene, near the end of the scene, left of the last trampoline, above two brick blocks. | 
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| Overthere Stair |  Ghoul Shroom |
In the third scene, above the cloud 31, between two visible ? Blocks. | 
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Hidden Block count
This chart shows the number of Hidden Blocks for each location, with the total amount at the bottom. Locations are listed in the order the player can visit them.
| Location | Count |
|---|---|
| Lineland Road | 1 |
| Yold Desert | 4 |
| Gloam Valley | 1 |
| Planet Blobule | 6 |
| Gap of Crag | 2 |
| Floro Caverns (5-3) | 3 |
| Overthere Stair | 1 |
| Total | 18 |
