Metroid Fusion

Prototype Info Prerelease Info Bugs Debug MenuSurprisingly full-featured for a GBA title. Unused GraphicsA PlayStation mascot? In my Nintendo game? Unused TextLady, what are you doing!? Regional DifferencesThe later Japanese release got a bit of extra polish.

Unused Rooms#

To do: There's more unused rooms. This video shows all the ones covered here, as well as an early Yakuza (Space Jump boss) room and a hallway room seen connecting to the hangar room. This video does not show an alternate first debug room visible with the Metroid Advance Game Editor (MAGE), under Debug 3, Room 0.

Debug Rooms#

Watch on YouTubeThese are some debug rooms that use graphics from Wario Land 4, suggesting that it was based off the same engine.

Here are some maps of these rooms. Click the thumbnail to see a larger version.

Early Hangar Room#

Watch on YouTubeAn unused room near the gunship that is similar to 2 rooms shown in a trailer for the game, one that has a strikingly similar design (although with a wall on the left) with the player destroying zombies with a power bomb and another with Samus exiting her gunship which uses the same background and similar floor tiles. One could possibly guess that this would be an earlier version of where Samus's gunship would have been since there are gunship graphics within the tile set, but there seems to be no place where the gunship would fit in without looking awkward, this added with the fact that the unused hallway leading up to this room is sealed with both a Level 0 and Level 2 security hatch. It's likely that this could have been used for anything during a much earlier version, but was scrapped before anything could be realized and just accidentally left in along with the tileset to similar hangar rooms.

Alternate Neo-Ridley Boss Room#

Watch on YouTubeVideo to come with working Ridley hopefully later.

An alternate boss room for Neo-Ridley, which somewhat resembles the Ridley boss room in Super Metroid. The door connects to the same door in the final that led to the Neo-Ridley fight. This room also uses an unused tileset.

Unused Music#

An unused music track. Sounds like something being hunted?

Another unused track. This sounds like something frantic, maybe the original escape sequence music?

This seems to be either a sound engine test or is a leftover from the prototype.

Unused Item Behavior#

• The Ice Beam is actually capable of freezing enemies like Ice Missiles. However, the only enemy you can normally use it against is the Omega Metroid boss.
• Screw Attack is cancelled by water without Gravity Suit, which is obtained before it. This is even described in the manual on page 31, even though the situation never happens.
• Screw Attack, without being alongside Space Jump, allows single wall wall jumping, Super Metroid and Metroid Zero Mission-style. Normally, wall jumping in Metroid Fusion pushes Samus far away to prevent single wall wall jumping, likely to prevent sequence breaks. Having just Screw Attack prevents the push away, allowing Samus to wall jump and make it back to the wall before losing height, which then allows another wall jump and ultimately gaining height.
  • This could be a side effect though of the game simply assuming it should not push Samus from the wall, as having Space Jump prevents wall jumping. A side effect of this is that jumping off of climbables would normally use wall jump physics, but with Space Jump, the physics of a Space Jump is used instead without getting pushed from the wall.
• Space Jumping without Hi-Jump causes Space Jumps to have normal jump height. Space Jumping with Hi-Jump causes Space Jumps to have the same height gain as a Hi-Jump.

References#