Try using Blitz v1.77 to run the examples - you should find they don't crash and the monster truck demo works much better.
The ALIGNTOVECTOR command was changed at some point after 1.77, which causes the jittery stuff you see on the screen. It should work with 1.77, which is the version I was using when I wrote the wrapper and demos.
The ALIGNTOVECTOR command was changed at some point after 1.77, which causes the jittery stuff you see on the screen. It should work with 1.77, which is the version I was using when I wrote the wrapper and demos.