Heart Block

From the Super Mario Wiki

A Heart Block is a type of block in Paper Mario. There are multiple different ones scattered throughout the game, each one refilling all of Mario's HP and FP. The first block is found in Jr. Troopa's Playground near Goomba Road, where the game gives a description about the blocks.

Heart Blocks returned in Paper Mario: The Thousand-Year Door, only now, it would cost Mario a few coins for the health benefit, indicated above the block. The first block will be found at Shhwonk Fortress, where it will again give a brief description about the blocks.

These blocks are usually, if not always, found right before a boss fight, and right when Mario enters a new area such as Mt. Rugged or Hooktail's Castle.

Blocks

! Block | ? Block | ♪ Block | 4-Bros. Random Block | Arrow Block | Aurora Block | Black Block | Bonus Block | Brick Block | Bros. Block | Coin Block | Command Block | Control Block | Dice Block | Dotted Line Block | Drop Block | Egg Block | Event Block | Expansion Block | Giant ? Block | Giant ! Block | Grab Block | Green Block | Heart Block | Hidden Block | Hint Block | Ice Block | L Block | Laser Block | M Block | Marshmallow Block | Metal Block | Minus Block | Mushroom Block | Perry Block | Pink Block | Plus Block | POW Block | Pushing Block | Rally Block | Random Block | Red Block | Rock Block | Save Block | Shine Block | Simu-Block | Spin Block | Star Block | Stone Block | Super Block | Triangular Block | Turning Block | Used Block | Warp Block | Wooden Block | Yellow Block | Yoshi Block