This is a Flash Animation staring Mona and Giko Cat. They are two popular charectors from the popular Japense Website
"The 2 Channel Forums". Almost 200 flash animations have been made about these two charectors (and their friends)
Want more Mona and Giko?
100 Mona/Giko Flashes for your enjoyment:
http://www.blogjam.com/mona/