Bob-omb Battlefield

Bob-Omb Battlefield is the first level of the game Super Mario 64.

Once you have entered the Castle, the course is on the left hand side, and is the only axcessible level to play until you have collected at least one powerstar from the enemies guarding them.

Big Bob-Omb on the Summit
To collect the first star of the game you need to scale the mountain and defeat King Bob-Omb in a man-to-bomb fight. The object of the course is to get behind him, and lift him up, slamming him to the ground three times. After doing so, he will grant you your first star, and you are ready to explore some of the other worlds in the castle, unless you preferr to stay in the somewhat safe environment of the Bob-Omb Battlefield for yet another couple of stars.

A good thing to think about is that throwing the King of the mountain will not inflict damage on him, and you will have ran around chasing him for nothing. Slam him to the ground on top of the mountain instead.

Footrace with Koopa the Quick
Once you have defeated the King bomb, you are able to have a go at Koopa the Quick. He will challenge Mario to a race, to the top of the summit. Talk to him to start the race, and head of. Winning the race will grant Mario another star, but the use of the Wing cap or the cannons will have him accusing Mario of cheating, and the race will have to be done again.

Shoot to the island in the sky
This is the third challenge in the Bob-Omb battlefield, and lets Mario try out the cannons for the first time. Speaking to any of the pink Bob-Omb's in the field opens up the hatches that cover the cannons, and then Mario is able to climb down, aim himself anywhere he wants to, and blast off into the sky. The objective is to get to the big floating island in the sky, and collect the star that sists there in a yellow "!"-box.