And here's another.

[hider=Young][img=http://cdn.bulbagarden.net/upload/b/ba/Spr_1b_025.png][img=http://cdn.bulbagarden.net/upload/3/38/Spr_1g_151.png][img=http://cdn.bulbagarden.net/upload/5/59/Spr_1g_006.png][/hider]
[hider=Old][img=http://www.pkparaiso.com/imagenes/xy/sprites/animados/pikachu.gif][img=http://www.pkparaiso.com/imagenes/xy/sprites/animados/mew.gif][img=http://www.pkparaiso.com/imagenes/xy/sprites/animados/charizard.gif][/hider]