Hidden sounds:
Click on the letter "P" in the word "Mario Paint" or the falling star on the title screen. After awhile a new background will appear. Click on the moving objects to hear a sound. Quickly click on a falling star when it appears. Harps will play as objects fall from the sky.

Change Mario's size:
Click on the letter "M" in the word "Mario Paint" to shrink and expand Mario.

Hit Mario:
Click on the letter "A" in the word "Mario" to cause it to fall and hit Mario.

Walking "R":
Click on the letter "R" in the word "Mario Paint" to put an eye on the letter and move it around.

Alternate music:
Click on the letters "I" or "O" in the word "Mario".

Yoshi cameo:
Click on the letter "A" in the word "Paint".

Shake the screen:
Click on the letter "I" in the word "Paint".

View credits:
Click on the letter "N" in the word "Paint".

Color title screen:
Click on the letter "T" in the word "Paint".