Saturn Valley

Go north where the zombies have abandoned their post and you'll find a ladder into some creepy caves.

Along the way you'll pick up some pretty decent items so make sure you have room to store them.

Right before you are exiting you will encounter Mini Barf who is really a push over.

Focus on using PSI Rockin and PSI Fire. If Jeff has some bottle rockets definitely set those off.

After you defeat him go up the ladder.

Exiting the caves there will be a man selling a few food items and a Magic Butterfly.

Make your way up the coast line. Most of the enemies are not too difficult but be sure to watch out for any of the Plain Crocodiles.

Towards the top of the map you'll see another tunnel entrance. That will lead you towards Saturn Valley.

You should be able to make quick work of this tunnel since there are just a few Cockroach enemies.

Be sure to grab any presents you see along the way.

All are Mr. Saturn.

Walk around and talk to all the Mr. Saturn to enjoy some goofy dialog.

In the Mr. Saturn Drug Store you'll have some new equipment options.

Personally I would skip the Bionic slingshot since it tends to miss more than the bats.

In the junction tunnel you'll find one Mr. Saturn that gives you a hint about the Waterfall back at Grapefruit Falls.