On the Japanese Mega Microgame$ website there are pictures of the various animals used in the microgames in Kat's section of the site.
Cat from the "Cat Nap" microgame
Dog from the "Shake!" microgame
A black cat that I can't remember
Original section
Cat from the "Cat Nap" microgame
Dog from the "Shake!" microgame
A black cat that I can't remember
Original section