Emulation is always an option. The R36s can handle dreamcast games for pretty cheap, though it's recommended to replace the cheap SD card it comes with.
I think emulators can give little windows for the screens now? But no controllers I'm aware of can actually display them (including an official DC controller with a VMU...no adapter sends data back, and the emulators don't know how to send it anyhow)
Emulation is always an option. The R36s can handle dreamcast games for pretty cheap, though it's recommended to replace the cheap SD card it comes with.
How do emulators handle games that want to use the VMU as an auxiliary display? (Did that actually ever matter?)
It did rarely matter.
I think emulators can give little windows for the screens now? But no controllers I'm aware of can actually display them (including an official DC controller with a VMU...no adapter sends data back, and the emulators don't know how to send it anyhow)