Easy Mode- On the title screen, press Start to enter the pipe room. In this room, press Select to get into "Easy Mode". You can then begin any saved file you wish.
The Sixth Gold Coin- When you are selecting your level go to the hippo stage. When you enter the hippo level, you will find a model of a hippo blowing bubbles, jump into a bubble and float the whole way of the level in the air. At the end of the level, insted of exiting through the regular door, you will exit through a door above it, which is normally unreachable without you floating through the bubble, go through it and you will come to a space stage, which is hard, if you complete it you will get the coin.
Beware though, when floating through the air in a bubble avoid all enemies and the water coz the bubble will just pop. And another thing, whenever you want to get to the space stage, you will alaways have to go through the bubble in the hippo level first.
Get Extra Life- On the level with the floating bubbles, there is a easy way to get an extra life. First, you start by going towards the bubble. Then, get in the bubble. Finally, once your in the bubble, go left back to where you started. When your back to where you started go up all the way and there should be an extra life!! You can always get it every time you die.
Beat the Level Bosses:
Space Zone: you will have too aviod the blast and try too stomp him on the top.
Marco zone: you will find a ratt but BEWARE it will try too ram you he will alwayes come from the same tunnel that he goes in.
Mario zone: Their are 3 pigs if you have the plant you can shoot them 2 times and stomp on them once it will die.
You can shoot all bosses whith the fireballs.
Infinite Lives- First, go to the Tree stage and go to the second level. Second, Keep on running until you see the drop-offand then jump into the jelly on the other side there wiil be a box jump and then there will be a heart, run and get it.