Metroid Crawl modifies the character movement to allow crouched walking.

The otherwise vanilla game is augmented to require crawling. The morph ball has been removed from its usual location, and many single tile high tunnels have been expanded to two tiles high to allow progression through the game without the morph ball.

Blocks that can be destroyed with bombs can now also be destroyed with missiles.

This rom hack is provided as-is with no warranties against soft-locks or glitches. No feedback on the shortcomings of this rom hack is necessary or wanted.