Beginning
Donkey Kong Country begins as you choose whether you want to play as DK, two player co-op or two-player competitive (a bit pointless). This guide will be written as if you were playing 1 player. Note : collecting all K O N G letters boosts your % level.
world 1 level 1 – Jungle Hijinx
Donkey comes out of his house, which you can go back in to get a red balloon (1-up). If you follow the trees for a while you will be rewarded with 2 red balloons and a green one (2-up) as well as some bananas on your way.

There is an expresso totem you can find under a Necky near the middle of the level. you will find rambi, and After the first jump with rambi will open a hidden passage in the wall in front of that jump, and you will receive a red balloon. under the tree with the G open another passage on the right to enter a bonus stage.

world 1 level 2 – ropey rampage
First thing to note is (like stage 1) follow the first few trees and collect about 20 bananas on the third or fourth tree, (if you do this at end of stage you can get some bananas as well). Hop off the right of the tree with the O, it will shoot you through a wall and into a stage with the N letter and a bit of bananas.

If you jump in the pit before the arrow sign you can enter a bonus stage that if you win you get a red balloon.
world 1 level 3 – Reptile rumble
you start with like 3 barrels and you can take one to the first wall by the K to open a bonus stage with a red balloon inside. after the bonus stage you’ll be sent onto a tire, jump up on the ledge with a DK barrel, and to your left is a cannon barrel to another bonus stage! A bit past the N is 2 barrels, throw them in the snake pit shown below.

you can get an Enguarde totem by jumping off some kremlings towards the end of the stage.
world 1 level 4 – Coral Capers
get K by continuing on the first swim up, and same goes for the N above the swim up with the larger sharks. a