At the intro screen, hold R and L buttons and press up or down to make the 
clouds move faster or slower.

Beat the game once. Then you get extra stages where the time limit is 
shortened. If you beat these, you will see the real ending.

Beat the first set of worlds without continuing and you can access super on 
the menu. This allows you to run (hold down L1) and jump up to six times in a 
row. Also press triangle to fall down fast (massive damage).

To start from any world or stage:

At the title screen press : Up, Up, Down, Down, X, X, Left, Right, Left, 
Right, X, Triangle, X, Triangle. Now the screen will turn red, press start 
and use left and right to select which level to start at.

To change cloud speed on title screen:
Okay, it's a useless tip, but if you hold down L1, L2, R1 & R2 you can 
use up and down on the direction pad to make the clouds go faster and 
slower.

Super Level:
Collect Jet Pods in the order so that they spell EXIT. This will take you to the 
super level where you can jump six times at once instead of three, and use 
Super Speed by pressing L1 or L2. In the Doomish levels, shoot the walls with 
a picture on them to get to hidden rooms.

In gladiatorial stage where you get to take on the black evil Robbit, take out all 
the little rabbsies first, then stand under the shelter where you start and wait 
for the black robbit to continually jump on the landing. Then carefully manouver 
yourself to the corner of one side so that you can look up and just clip robbit's 
big feet with your