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Cave Story MD

Comparison Shot Video

This is a rewrite/port of the popular freeware game Cave Story for Sega Mega Drive/Genesis. It should work on any console or emulator. The main story is "finished", only little things and bugfixes remain.


"Stable" releases can be found in the Releases tab.

Control Defaults

If you have a 6 button controller:

  • C - Jump, confirm
  • B - Shoot
  • A - Fast forward through scripted events
  • Y, Z - Switch weapon
  • X - Map system
  • Start - Pause / Item Menu

For 3 button, A cycles through weapons. The rest is the same.


  • Stage Select: up, down, left, right, A + Start. Like Sonic.
  • Infinite health/ammo: up, up, down, down, left, right, left, right, A + Start.

You can still get crushed, drown and fall out of bounds.

Note that you can't load or save the game while cheating (including the counter).


  1. Setup marsdev and python
  • Marsdev targets: m68k-toolchain z80-tools sik-tools
  1. Clone & make

Other Information


Various, details here


I did not know how to sort this list, so I did it alphabetically.

  • andwhyisit: A whole lot of testing. Automated builds.
  • DavisOlivier: Helped with a few music tracks.
  • Sik: Mega Drive tech support. Made the font used ingame.
  • Other people I probably forgot


Mostly taken from

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