Bob-omb Battlefield

Bob-omb Battlefield is the first course in Super Mario 64 and Super Mario 64 DS. The player character can enter the course through the painting in the far left room on the first floor of the Mushroom Castle, and the door into the room does not require any Power Stars to open. Bob-omb Battlefield is the grassy battleground of a war being raged between the black-colored Bob-ombs, led by the Big Bob-omb, and the pink-colored Bob-omb Buddies.

Layout
The setting of the course takes place on and around a mountain, split between the territories of the two Bob-omb races. The player starts in the Bob-omb Buddies' territory, far off from the mountain in an area with two Bob-omb Buddies and a cannon that will be available to use after the player has collected the first Power Star, along with a couple of crates and Goombas farther ahead. To the left of the starting area are a few Bob-ombs and a gate that has to be opened by pressing the Purple Switch on the other side of it, providing a shortcut should it be opened. Additionally, several iron balls will roll down the slope and collide around this area. Going up the bridge from the starting area will lead the player into a field with several large rocks, Goombas, a Koopa, and the only Chain Chomp in the game. Several Water Bombs will fall into this area, damaging the player character if he comes into contact with them. Crossing the teetering bridge ahead will bring the player into the Big Bob-omb's territory.

To the left of the bridge is an area with a couple of Goombas and several stumps, in the middle of which is the Star Marker for this course. Up the short set of stairs is a large field with many Bob-ombs and a cannon, along with Water Bombs falling from the sky to attack the player. At the end of the field is a path leading behind the gate from earlier. Going up the stone path will lead into the base of the mountain, which has two or three iron balls (depending on the Star chosen) rolling around in the crevice. The way up the mountain is a spiraling pathway with iron balls constantly rolling down it and gaps the player has to jump over. The player can also use a warp point, located in the small cave the iron balls roll out of, to warp up to the top of the mountain. At the top of the mountain lies either the Big Bob-omb during the first mission, the goal during the race against Koopa the Quick during the second mission, or nothing at all during any other mission.

Also on the course is a floating island that does not appear to be controlled by either territory. The island contains a red and a yellow ! Block, containing a Wing Cap/feather and a Power Star, respectively, and a cannon that can be used to collect the rings of coins floating in the air.

Statistics from Super Mario 64

 * Total Number of Coins: 146
 * Caps Found: Wing Cap (3)
 * Spinning Heart: Near the top of the mountain.
 * Cannons: 6
 * 1-Up Mushrooms (3):
 * Homing Mushroom : #1 In a tree by the Koopa.
 * Static Mushrooms : #2 In the tunnel under the mountain gate.
 * Triggered Mushroom : #3 Appears after the player collects some coins from the ring around the flower bush.
 * Warps:
 * Mario can warp from a bush of flowers near the Goombas and the cannon to another bush that is near the Star Marker.
 * Mario can warp from the alcove midway up the mountain where iron balls are coming out to the other alcove near the top of the mountain.

Other appearances and references
In the Super Mario Mash-Up Pack available on the Nintendo system versions of Minecraft, one of the possible painting that can be hung is the one for Bob-omb Battlefield. In the premade world for the Mash-Up Pack, there is a recreation of Peach's Castle, including the room with Bob-omb Battlefield's painting. Going through the painting will lead to a pipe that takes the player to a beach near the world's recreation of Delfino Plaza.

In Super Mario Odyssey, the brochure held by Hint Toad and in the Odyssey depicts a bird's-eye view of Bob-omb Battlefield.

At the entrance to Super Nintendo World, in the foyer of Peach's Castle, the painting for Bob-omb Battlfield is hanging on the wall. However, the painting is a lenticular print; if looked at from a different angle, it instead displays Bowser Jr. holding his Magic Paintbrush and a Golden Mushroom.

Trivia

 * According to Giles Goddard, the programmer of Mario's face, this was the first map to be completed in development.
 * In a poll created by Nintendo of Australia and New Zealand, Bob-omb Battlefield was voted the "#1 Best-Ever Sandbox-Style 3D Mario Stage."