Jetovator.
>Ahhh, the z80. Where a jmp was 4 bytes as god intended. ;p
And everyone knew the size of a Byte :)

This one is fun. Take a mouse circuit. Hang a pendulum from the ball, and mount it in a box with z80. Object, get the boat from standstill to plane as fast as possible, using vertical jet control, and trim tabs. (Running the Jet out of water is not an option). At 3500 RPM, turn on Nitrous Oxide injectors, and respond to additional reactions !!!

>These sound pretty cool. If it gets close and you need a quick patch you can, however, still block ASM code in VC++.

No pressure, just experimentation. How do you block ASM code ?