Adventure Island/World 7

Stage 1

 * 1) You start off in an ice cave with the usual icicles perched all along the ceiling.  Some Pooters and a large number of Skulls stand in your way.  Since you should still have a weapon from the previous boss fight, you shouldn't have any problem taking the enemies out.  Collecting the fruit from under the icicles shouldn't be a real challenge either.  Just watch out for the boulder towards the end of the section.
 * 2) In the next section, you'll stand a better chance of surviving the frogs and icicles if you charge at the frogs and simply let them leap over you.  You'll encounter a platform followed by a spider, and an icicle hanging up above.  If you progress slowly enough, you can kill the spider and trigger the icicle to fall.  However, if you are moving too fast, try to land between the spider and the icicle.  After another platform and fire, there is a hidden fireball egg directly beneath an icicle.
 * 3) Shortly after you start this section, you will climb up some steps.  Immediately after the first fire that you come to is a hidden egg which contains a red bottle of milk.  Collecting it will give you more time to deal with the icy platforms that you must maneuver over to continue.  Watch out for the spider and icicle beyond.  After this, you must jump over a series of gap until you come to a springboard.  The springboard must be set in order to collect the Bonus Pot.  Beyond the pot is an eggplant egg, so you need to set the springboard, back up and run towards it to spring off, collect the pot and land beyond the egg.  While you have all of this momentum, you should continue to run forward an immediately jump up to the next ledge so that you don't get killed by the icicle.
 * 4) Run down the steps, killing or avoiding Bassers and Skulls until you reach the bottom.  Deal with the frog on the ledge above carefully.  There is a hidden fireball egg right at the very beginning of the highest step.  Then you must jump over a series of gaps to descending ledges.  Watch out for the platforms and the single spider beyond, and jump over them carefully to complete the stage.

Stage 2

 * 1) The first long stretch of land contains many Sneils and Octopi for you to destroy or jump over.  There is a hidden fireball egg shortly before you come to water.  As you jump over the clouds, there is a particularly high jumping Octopi beyond the falling cloud.  Try to eliminate it before you proceed.  Watch out for the right facing frog when you land.
 * 2) You'll need to jump across three falling clouds that increase in starting height.  Beyond that is a fire, a weapon/skateboard egg, another fire, and some enemies.  The enemies are a Blue Octopi and two Pooters.  The very first Pooter is hiding the Bonus Pot, but collecting it will be tough.  Depending on which way you hit it, you might be thrown into a fire or one of the other enemies.  Try to face left while standing right next to the right fire so that you get thrown left, but not into the other fire.  Then proceed to the right through the rest of the enemies and the two fires at the end.
 * 3) Avoid the three frogs and find the hidden fireball egg just before the water.  Then you must jump from clouds to islands, avoiding any Octopi that jump out, and the occasional Waler.  Later platforms in this section will move back and forth.
 * 4) This is a very challenging jumping section.  There will be two Walers jumping out of the water near clouds that you must jump to.  Then you will encounter two falling clouds with Octopi jumping out immediately after them.  So you must land on the clouds and jump off of them so that you clear the Octopi as well.  You will come to a coulmn of descending clouds.  Only this column will be contain a gap after every two clouds.  You must time your jump to the column so that you land on the lower cloud, up to the one above, and over to the cloud on the right.

Stage 3

 * 1) Take your time through this first section.  You will encounter a series of lateral moving platforms that ferry you across gaps.  When you pass two of them, you'll find a frog waiting beyond the tell-tale Coyote flower.  Try to remove the frog before the Coyote appears.  The next platform will lead you to a fire, followed by a flock of Cavas birds arranged in a single column.  Having a weapon will definitely help you get past them.  Otherwise, you'll have to wait for a gap in their flight to appear.
 * 2) Many enemies occupy the ledges as you descend through the stage.  Be prepared to jump off any platform in case it drops out from under you.  Ultimately, this section shouldn't pose much of a challenge to you.
 * 3) You must traverse more platform in this section.  The biggest threat will be the groups of enemies assembled along the ledges between the platforms.  A weapon will make a huge difference here.  Towards the very end, you will see the Bonus Pot below a platform.  Clearly, this platform will drop, but collecting the pot and jumping off of it to the ledge beyond takes very precise timing.  To help yourself, scroll the screen over far enough to trigger the boulder to fall before you jump.
 * 4) This is another extremely difficult jumping section.  You'll have to observe where the platforms are going, and do your best to anticipate enemies beyond the edge of the screen.  Basser bats in particular like to appear and dive down just as you're making an approach to the next platform.  Ledges lined with frogs and rocks make it particularly difficult to survive the landing whether you have a weapon or not.

Stage 4

 * 1) You won't find anything out of the ordinary in this congested first section of a fourth stage.  Numerous spiders are situated around fires that you must carefully weave through if you are unfortunate enough to not have a weapon.  Cavas birds signify that you are close to the section's end.
 * 2) After the Coyote ambush, many rocks litter the path way around fires.  If you have fireballs, you can clear them out of your way.  Otherwise, you will have to tread lightly.  A series of frogs appear next.  You can rush right through them, letting them leap over your head.  Jump over the final green frog.  At the end, you can use the springboards to leap over all the final obstacles, but avoid crashing into the last egg as it contains an eggplant.
 * 3) You can run directly under the first set of spiders, but you'll have to deal with the next batch.  Destroy them if you can.  When you clear the forest, you can run under the next set of spiders, and jump through the gap between the initial set and the last two.  Watch out for another Coyote ambush.  A couple of Pooters will advance towards you.  The very last one is particularly slow.  Crash into him to reveal and collect the Bonus Pot.
 * 4) This final section is much like the other fourth sections of the fourth stage.  A boulder approaches you on the first incline, a series of fires must be leaped over, and a Cobra awaits before the last slope to the boss.  After both platforms fall down, you'll be in the bosses headquarters, where you must bombard his head with 20 shots to put him down.  He will not give you a lot of advanced warning before chucking a fireball at you.