All of a sudden you go from straightforward, single segment stages to one of the most complicated stages in the game. Stage 4 not only features multiple segments, the segments branch, forming two different pathways through the stage. The lower path is considerably easier than the higher path, but the higher path features a warp and more treasure. More importantly, the higher path contains the first secret coin in the American version.
Segment 1[edit | edit source]
The branching starts right away. At the right end of this level are two exits, one to the right, and one up above. If you take the lower exit, continue on to the next Segment. If you take the upper exit, jump down to Segment 3.
Segment 2[edit | edit source]
The lower path is the easier of the two paths, and it contains a number of secret chests. There is a secret treasure room in the middle, but jumping in can be a dangerous temptation, as the room below it is the only torture room that you can enter voluntarily. Once there, you'll have to jump off the ground 50 times in order to escape. Once you reach the far right exit of this segment, you'll arrive at the bottom of the last segment.
Segment 3[edit | edit source]

This segment of stage 4 is a vertical climb. The exit to the next segment is shortly before the very top. Before you pass through it, it's worth exploring the very top for an extra life.
Warp to Stage 7[edit | edit source]

The top room of the third segment contains a secret warp to the third segment of Stage 7. After taking the warp, the door back up to the second segment of stage 7 will open, so the Crystal Ball can still be collected.

If you're going to attempt the warp from stage 4 to stage 7, you'll need to meet a few preconditions. First, you must collect the Sphinx that opens the door at the very top of the segment. The Sphinx is located directly beneath the hidden slave at point H. In the Japanese version, you must jump several move times to make the brick beneath the Slave disappear. Once you collect the Sphinx, you can enter the door at the top. When you pass through it, remember to push left as you regain control of Jack, or you will simply pass back through the door and lose the opportunity to warp. In order to successfully activate the warp, when the Timer is about to switch from 1 to 0 you must 1) have no Mighty Coins in your inventory, 2) have the screen scrolled all the way to the left, and 3) be falling to the right. If you do all of this successfully, the timer will suddenly switch back to 60, and a door will open in the left corner of the ceiling.
Since you are likely to have to wait out a long time for the Timer to reach 1, it helps if you situate yourself on the left side of the room such that the mummies transform into Hanezos or the fireball Desufas which bounce off the treasure chests and leave Jack alone while you wait out the timer. Remember that the number of times you press determines which enemy the mummies transform into. Holding right against the mid-air wall will not work since it scrolls the screen to the right, and walking against the chest will not work since you need to be falling. The timer advances after approximately 4 seconds, so one strategy is to stand against the left wall until 3 seconds after the timer hits 1, then hold right to walk off the ledge. In general, this warp is more trouble than it's worth.
Segment 4[edit | edit source]
Segment 5[edit | edit source]

This segment contains a particularly easy bomb bonus to obtain. Most of the bombs can simply be collected in order as you fall down.

Midway through this segment, there is a hidden chest to the left of the chest that contains a Mighty Drink. Jump on the block that it's hidden in to reveal it, and collect the Mighty Coin it contains.
Segment 6[edit | edit source]
This segment is certainly the most important segment of the stage, at least for American players. Because this is where you can access the first secret coin in the pyramid.
Segment 7[edit | edit source]

This is the final segment of stage 4. You'll arrive at the bottom if you took the easy path through Segment 2, and you'll arrive at the top if you took the harder path through Segment 3. The exit out of stage 4 is in the middle of the segment. Notice that the bombs are intended to be collected from the top to the bottom if you want the bomb bonus.