Video Guide:

Text & Image Guide: (If the images appear too small, click on them for a larger version.)

Step 0: This guide counts for both normal mode and furball mode. Before you begin you must keep in mind that the in-game timer is required for run submissions, and the in-game timer doesn't start until you have control over Nyamo, which is 1.5 seconds after pressing Enter at the title screen. Take note of that when you're using a real timer.

Step 1: The moment you have control go directly to Level 1 which is marked by a red 1 on the map. Ignore any items.

Step 2: As soon as you enter level 1 go immediately right to cross through 3 rooms. After this go down and then right and keep following this path until you get to the first shapeshift powerup.

Step 3: After you pickup the powerup, go directly back the way you came to exit the level. Note that with the second shapeshift you can now jump up to platforms much quicker without having to time your jumps on the disappearing platforms.

Step 4: Go right and back up to the door which leads to level 2.

Step 5: Upon entering level 2, the only direction you can go is left. You will go left through three rooms, then up two, then right two, then down and right to reach the third shapeshift. At this point the level's exit is closest to you if you keep going forward to the right, down, and then left.

Step 6: Go back down and this time go right instead of left and keep going until you reach level 3.

Step 7: Go right until you can't go right anymore. Go up then go left until you reach the fourth and final shapeshift. Continuing to go forward is, again, the fastest way back to the exit.

Step 8: Upon exiting the level, go back the way you came and go back to the first door you saw. This will take you to the last level.

Step 9: This level is a one way path, so go straight through it until you reach the last door to trigger the credits. If you're using a real timer, the timing ends the moment you press up at the last door. The game will show you the in-game time after the credits.

I hope this guide was helpful to you. If you have any suggestions that can improve this guide or increase the pace of this speedrun, feel free to post it in the forums.