オナニー穴

Onihole, as it is called, is a pun in many ways. First, on "Onahole", then Oni's (butt)hole and it is also an Oni in a hole (cave).

Many thanks to Mittsies and Besped for taking their time to code this beast!
And thanks do DM DOKURO for making the music! (Download link is in the flash)

During the time I made this, I went through many phases, so something are kinda halfassed, while some are better made. In the end, I tried to not put so many things in, but there's lots of randomized things in it. SO have fun.