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After entering the pyramid, you will need to jump along the platforms, avoiding the spikes on the ground. Watch out for some of the blocks; the movable ones will try to bring you down, and there is at least one block that has a surprise spring.

When you reach the main corridor, jump along the top, stopping just before a blue pillar. Jump on the platform before the pillar to collect some hidden coins.

Head to the right and jump down. The boss door is above and to the left. This boss will ask you a question, and if you answer it right you defeat him instantly, if you fail you will have to fight him.

One question is about what he had for dinner, in this case choose "No Dinner". Another one is what he does to keep himself in shape, in this case choose "Jogging". There are other questions too.

If you chose the wrong answer and have to fight him, just avoid his bolts by jumping over them or using your shield, then hit him with the sword. He will move back a little after your hit, then disappear. If he disappears too quickly for you, try jumping over the bolt and hitting him at the same time. He will need some hits, but if you remember your right and wrong answers, you won't have to fight him too often.