Check out this simple Flash Game featuring Pencak Silat I found on the web (although to be honest it looks more like a Taekwondo game, but to be further honest I've never seen Pencak Silat performed, so I can't be a judge on what it's supposed to look like).
Anyway, here is the link:
http://angkatan23.tripod.com/silat/
There it is, Enjoy!!!!