Click the character to place a Tsum Tsum. To change your character, press space bar, there are 15 to choose from. Click the b key to change the backdrop. Use up and down arrows to change the size from small to medium to large, and left and right to rotate it. I prefer down and up to stack. Click the B key to change the Backdrop. The Tsum Tsums are Perry, Anna, Alice, Jack, Mickey, Donald, Minnie, Pluto, Olaf, Pooh, Bambi, Baymax, Ariel
I added some Tsum Tsums (Alice, Jack Skellington, Anna) and erased most of the white box around the Tsum Tsums.