2 to shrink. 1 to get back. To climb walls, hold down the right arrow key and the up arrow key. Also, you are INVINCIBLE!!!!!!! Don't use shrink on LVL 8; it glitches out. Shrink is fast, so watch out for that. Also, YOU ARE INVINCIBLE!!!!!! Enjoy. 0_0
Thanks to @PixelPark for the sprites, I changed the music.