# Block Fighter

Go head-to-head against a rival in a falling-gem battle. Win by making your
opponent's board overflow — the fight is lost when a board's **spawn column**
(marked by the red arrow) fills to the top.

## The Basics

- Pairs of gems fall onto your board. Move them with **← →** (or A/D), rotate
  with **↑ / X / Z**, drop faster with **↓** (or S), and slam them down with
  **Space**. On a touchscreen, use the buttons along the bottom.
- Gems come in four colors. They stack where they land — horizontal pairs split
  and each half falls to its own column.

## Crash Gems

The round, glowing orbs are **Crash Gems**. When a Crash Gem touches any gem of
its own color, it destroys the entire connected group of that color. This is
your only way to clear gems — plan your stacks so one Crash Gem wipes out a
big cluster.

## Power Gems

Build a solid rectangle of one color (2×2 or bigger) and it fuses into a giant
**Power Gem**. Power Gems count extra when destroyed, so building big before
you crash sends a much bigger attack.

## Chains

When gems are destroyed, everything above falls. If that drop brings another
Crash Gem into contact with its color, you get a **chain** — and every link in
the chain multiplies your attack.

## Counter Gems

Attacks land on the enemy board as **Counter Gems** — numbered blocks that
can't be crashed right away. Each number ticks down once per piece you drop;
at zero they become normal gems. You can also destroy a Counter Gem early by
clearing gems of its color right next to it. If you attack while garbage is
queued against you, your attack cancels it out first.

## The Diamond

Every 25th piece carries a **Diamond**. It destroys every gem of whatever
color it lands on — a great panic button, but it sends a weaker attack.

## The Ladder

Each level is a single battle against one fighter. Beat them to unlock the
next — opponents get smarter and faster as you climb. Lose, and you can retry
as many times as you like.