Use numbers or scroll to switch items, press E to craft, SHIFT to sneak

When you are not sneaking, your nickname is always visible

The map shows mineshafts (they contain wood) and the forcefield (it damages you)

Hold left click to break blocks with your pickaxe

Right click your sword for a boost - better swords give a longer boost

Left click to throw TNT, right click to detonate it (if there are multiple, it detonates the furthest one first)

Drink stew to heal your health