Easy Unlock Waddle Doo
Instead of having to beat the game with all the characters, you can unlock Waddle Doo by inserting a Kirby Nightmare in Dreamland or Kirby and the Amazing Mirror into your DS and next time you load your file Waddle Doo will be unlocked! Nightmare in Dreamland music will also be unlocked.
Blue, Red, and Green Doors
You've noticed that there are doors blocking off paths to medals, that's because you haven't pressed the right switch. Through the later levels, you'll find hidden paths, that will lead to giant buttons, just press them and all the doors of that color will disappear. You don't need to press these switches if you don't want to, but if you want to unlock the classic songs(40-50 medals), Dedede Ball(20 medals), and Meta Knight Ball(25 medals) you'll need those sitches to get to the blocked off medals.
Secret Fifth Character
An alternative way to unlock the 5th secret character is to complete the final level (Drawcia's Castle) while having the game "Kirby's Nightmare In Dream Land" or "Kirby and the Amazing Mirror" (Region does not matter) inserted in the GBA slot in the Nintendo DS.
Beat Boss Levels
Boss 1: Kracko
Just bounce around by drawing lines under kirby and hitting people until you get up to the boss in this boss stage. Then just wait for the dots around him to stop, then bounce into him. Do this a few times.
Boss 2: King Dedede
For this guy, just grab the generator (the circle thing in front of you with the arrow in it) and try to drag yourself into the fruits in the bubbles and away from the other stuff. Then you will speed up and win the race.
For this one just draw the man's pictures connecting the dots in the same order as him. Do it fast though, or the bombs will hit you and you will lose.
Health upgrade and bonus course in Rainbow Run
To get a health upgrade AND a bonus course in rainbow run, start a new game. Beat level 1 in the main game, then go to rainbow run. select level 1 in it, and get all 18 medals from the level (it is fairly easy, i got all 6 medals in each stage on my first try). Then, go to medal swap. The health boost is, from the top, 7 down. Buy it, then from there, count down 4 to buy the balloon special course in rainbow run. And there you go.
Pros & Cons
Pro: can break boxes with the same ability
Con: too light to stay underwater, and needs paint lines to stay under and move around
Pro: lighter than Kirby
Con: takes awhile to roll along a paint line(bounces a lot)
Pro: moves on ground when underwater
Con: Needs lines to moves higher in water
Pro: has high speed, and is very light
Con: Only has 3 HP
How To Beat Drawcia
Drawcia is the witch at the end of the game. To beat her, with any character, simply line your character up in the middle of the screen. When she shoots the red energy beam at you, draw a line to bounce it back at her. When she is down, ramm into her with your character, dash for more damage. You can do this up to 3 times after each energy bounce. Repeat this to defeat her. Watch out for her summon ability! When she paints a picture in the middle of the screen, thats what she will summon. For the needles, up to the ceiling you go. for every thing else, attack and tap it. After you defeat her, you have to beat her soul. After the batle starts, hide in a corner. Touch the eyes that she shoots out at you in the order that she shoots them. When she appears up close and begins to teleport around the screen, tapp her to paralyze her, and dash attack her. watch out for her fire ball attack. To avoid this, guide your character up to the top of the screen and wait for it to pass or stand still.
Paint Loop Boost
If you're pressed for time in a level, make a loop in front of your character. As he goes around the loop he'll pick up speed and will launch off with the same speed you get with touch dashing. The catch is that you have to make a loop that Kirby can get out of (like a balloon shape), otherwise Kirby will go around the loop again and again until the paint line disappears.
How to get Subgames
If you want to play Boss games without playing one of the Main Game levels, beat a boss twice, and you'll be able to play that Boss Game whenever you want. If you want to play the Long Jump Game, beat the Main Game with Kirby, Waddle Dee, King Dedede, Meta Knight, and Waddle Doo, and the Long Jump Game will be beside the Options Button when you go into your file, after beating the game. The bosses from left to right on the game selection screen are Kracko Jr. and Kracko, King Dedede, and Paint Roller.
Different Colored Lines
You can really get different colored lines! All you need is 5 medals (for each color) and you can choose from Zebra, Bead, and Tropical Bead. Here is a list of where they are in the medal shop.
Good luck trying them out!