Autumnal Battlefield

Found in only some personalised copies, Autumnal Battlefield is a level completely generated by the A.I which is almost identical to Bob-omb Battlefield in many ways. The level was supposedly removed around early-1996 due to the resemblance of an already existing level. It is possible that the level was created by the Dynamic Level Arrangement.

Appearance
Differences from Bob-omb Battlefield are small in quantity. Most textures are re-used from Tiny-Huge Island, apart from the grass texture, which has been coloured orange. The skybox is a simple, compressed picture of an evening sky; presumably a stock photo found on a SGI computer. The mountain has the pointed rock from beta builds of Bob-omb Battlefield.

The music is presumably the same as Bob-omb Battlefield but, in some copies, the level is silent.

Missions
The level has five missions; most of them similar to Bob-omb Battlefield's, one of them original. According to a single report, there were no missions and the level was just an empty test level.


 * 1) PRINCE BOB-OMB'S VENGEANCE
 * 2) TRAINING ON THE SLY
 * 3) GUARDING THE GATE
 * 4) A DOZEN RED COINS
 * 5) PILLAGE THE VILLAGE

Prince Bob-omb's Vengeance
In this mission, head to the top of the mountain where a much smaller, non-mustached Bob-omb replaces Big Bob-omb. He moves much faster and needs to be thrown five times to defeat him. After defeating him, he says 'Now I can never avenge my father!' before giving Mario the star.

Training on the Sly
This mission is almost identical to the mission Footrace with Koopa the Quick. Before the race, Koopa the Quick says the same as he does in Tiny-Huge Island. The race takes 2 minutes and 38 seconds to complete.

Guarding the Gate
Similar to the mission Behind Chain Chomp's Gate, The Chain Chomp returns with an angrier expression. It will begin to attack every second; it will swallow him whole rather than knock him backwards. After freeing the Chomp, he will attack more before jumping into the distance.

A Dozen Red Coins
Same as Find the 8 Red Coins apart from the number of coins has been increased to twelve.

Pillage the Village
It is unknown what this mission requires. However, it may include Bob-omb Village.

Theorising
It is possible that this existed before Bob-omb Battlefield, since the earliest report of this level is from a 1995 beta and the first known screenshot of Bob-omb Battlefield is from 1996. Also, internal source code proves this level would be Level 23; an idea is that the game would have 32 levels before being halved to 16 to make more space for more detailed levels.

Reports
"Everything in this section should be taken with a grain of salt. These are all unverified claims."

Report No. 1
'I was playing a copy of Super Mario 64 that I bought in the early-2000s. When I headed to the Bob-omb Battlefield painting, the painting was blank. Once I got closer, a text box appeared with something along the lines of 'This area is incomplete. Please remove this area before E3 1996. Signed, R.B., The Super Mario 64 Team'. However, curious 12-year-old me decided to enter the level. Instead of Bob-omb Battlefield, the name 'Autumnal Battlefield' came up with the first mission 'Prince Bob-omb's Vengeance'. But when I entered the level, the game crashed on a screen which looked like Bob-omb Battlefield but more autumnal. I can't even remember if that was a dream or not.'

Report No. 2
I found a 1995 Mario 64 cart named Ultra 64 Mario Brothers recently. When playing the game, a level select appears. Levels like 'MEADOW', 'FOREST', 'KUPPA_1' and 'TEST' were there but one named 'AUTUMN' stood out. I pressed start and played the level. The level was dead silent with extra echo. A few Goombas were there but didn't damage Mario. It reminded me of Bob-omb Battlefield but a little more odd and set during autumn. An error screen appeared a few minutes later, which region-locked the game.

Trivia

 * Similarly to Autumnal Battlefield and Bob-omb Battlefield, Gold Leaf Galaxy in Super Mario Galaxy appears as an autumn-themed mirror of Honeyhive Galaxy.