Big Bob-omb on the Summit

Big Bob-omb on the Summit is the first mission of Bob-omb Battlefield in Super Mario 64 and its remake, Super Mario 64 DS. It is also the first mission that can be completed.

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In Super Mario 64, Mario should reach the mountain's summit of Bob-omb Battlefield to fight Big Bob-omb. Mario may encounter several obstacles and enemies along the main path, including Goombas, Bob-ombs, a Chain Chomp, and Big Steely-like cannonballs that roll down the road spiraling around the mountain. Once Mario reaches the summit, he confronts Big Bob-omb, who introduces himself as the "lord of all blasting matter," becomes angry at Mario for scaling his mountain, and challenges Mario to a battle for a Power Star. Big Bob-omb can grab and toss Mario if Mario approaches Big Bob-omb at the front. Mario can defeat Big Bob-omb only by carrying him from behind and throwing him to the ground three times. If Mario throws him off the summit plateau, Big Bob-omb jumps back, declaring that Mario has cheated and must restart. When defeated, Big Bob-omb is surprised that he is beaten by someone who seems weak, but acknowledges that his troops can use Mario as a role model. After that, he explodes and releases a Power Star.

In Super Mario 64 DS, the battle is altered for Yoshi, since Yoshi cannot hold enemies as Mario, Luigi, or Wario can, and Yoshi is the only available character at the time in the game. Big Bob-omb throws Bob-ombs at Yoshi, who must then grab one with his tongue and spit it at Big Bob-omb before it explodes. Yoshi can also lead the Bob-omb near Big Bob-omb, and if it explodes at the right timing, it counts as a hit. If Big Bob-omb is hit by the explosion, he bounces around the summit, which can knock back Yoshi if he collides.

Big Bob-omb's defeat dialogue is dependent on the player's character: he compliments Yoshi for reaching the top despite lacking a mustache, he claims that Mario's mustache makes him like a peasant, he commends Luigi for being brave even though he does not look the part, and he notices that Wario's mustache makes him look distinguished and attempts to rip it off for flaunting it so rudely to him.