This page or section needs more images. There's a whole lotta words here, but not enough pictures. Please fix this. Specifically: Get more prototype screenshots for comparison.
Many unused HUD graphics as well as their palettes are still buried inside the final game. While some are duplicates or otherwise very similar copies to those used in-game (such as the numbers 0-9 and C-Button graphics), these specific images do not appear to be referenced by the game at all.
Unused. In Shoshinkai '96 footage, the Meteo Crusher fires a swarm of them. In early magazine screenshots, rings of them circle downed enemies on Zoness.
An accompanying explosion effect, suggesting the ball was a projectile.
Seemingly unused sprite in Meteo. In the source files, it's simply named ball. Grouped with the Meteo Crusher's assets. Possibly a replacement of the pink ball attack from the Shoshinkai '96 footage, before the attack was cut completely.
Early bluer version of the Sector X nebula. Visible in magazine screenshots on the Lylat map.
Oddly, it is grouped with Meteo's textures in the final ROM, and Meteo's assets in the source code. The file is named AS_Spacekumo.rgba (AS for asteroid, kumo meaning cloud, so "space cloud"). Footage from E3 '96 showed Meteo with an orangish-pink nebula in the background, suggesting Sector X's sprite likely started as a generic background for Meteo. Titania however was between Meteo and the Sector X bioweapons lab at the time. Could also be an early warp zone background.
Three textures resembling the ones used for Bill's ship and the Cornerian fighters on Katina. However, they were found in Corneria's bank. In the source files, they are named "CN_Airship." These textures indicate Cornerian fighters would have flown in Corneria city, which is corroborated by Peppy and Slippy's cut lines from the developers' dub.