Dreamcast Games?

[fredthehylian]

I recently got a Dreamcast from my cousin, and he had a lot of sports games that I either don't like, or they're scratched. The only games I like are Sonic Adventure 1 and 2, and House of the Dead 2.
I want to know some good games on the Dreamcast.
Keep in mind, the Dreamcast uses Dial-Up for internet, so please refrain from any games that have the best features on WiFi.