There are 4 types of moving blocks in the game:

1. Sand : Can be drilled. Falls when nothing is underneath it.
2. Obsidian : Cannot be drilled. Falls like sand.
3. Gravel : Cannot be drilled. Only falls when you walk on it. Will not fall if the block underneath it is destroyed.
4. Ice : Cannot be drilled. Can slide when drilled. Falls like sand.

If a movable block lands on your head, it will not crush you. It will sit there until you move.

If you enter build-mode while a block rests on your head, the block's position will be corrected to the space above you.

If you bonk a movable block before it falls, it will fall instantly.

Flying Ice:

• If a block of ice is drilled while it is falling, it will fly in whatever direction it is drilled.
• The ice will assume it is on ground level.
• Anything on ground level that would cause the ice to fall or stop will make it do so.
• If a block is placed underneath the ice, the ice will assume the block is the ground beneath it.
• If you enter Build-Mode while an Ice Block is flying, it will stop at whatever point it was at when you entered, unless you place a block underneath it.
• Flying Ice is incredibly scuffed.

Violent Ice:

• Violent Ice refers to when drilling an ice block pushes you far into the air.
• This only occurs at FPS higher than 60.
• The game is capped at 60 and it is unknown what makes it uncap.