◀ ▶  Move & aim left/right
▲  Jump & aim up
▼  Aim down
SPACE  Jump (keeps current aim)
X  Fire Heat Beam
R  Restart cave

You emerge into a cave buried in snow.
Snow blocks your path — use your fire beam to carve through it.

Your fire beam radiates heat — melting snow around it to reveal the cave.
Beneath the snow: thick ice platforms (very slow to melt),
thin ice blocks (5 hits to thaw), and frozen demons.

Melt all thin ice to open the exit. Platforms don't count.