You MUST download or it simply doesn't work because it uses an obsolete stretch block. Set the color to 101 to make the color constantly change. If you do, a slider appears, letting you change the rate at which the color changes. It automatically reverses when the flower touches the edge. Note that this works by using (size) blocks as (stretch) blocks. The whole reason the stretch blocks are obsolete is a conflict between size and stretch blocks. ------------CONTROLS------------ C key - clears Space key - resets, except doesn't clear. If in reverse mode, start big and stay in reverse mode. R key - toggles reverse 1S1S1C(0S4V) 1 sprite, 1 script, 1 costume, 0 sounds, and 4 variables.