Commodore 64 and Vic-20 programming challenge: 358 bytes of Basic V2!: Write something (anything really) in just 358 bytes of basic code. (The .prg file can be at most 360 bytes). Why 358 bytes? Well, that's 1/10 of the memory of an unexpanded vic-20.

Read more on the Denial and Folkvagn forums.
Boing
By Anders Persson
Download:
boing.zip
Programmed on a real PAL vic-20. Runs in both unexpanded and expanded mode.
The NTSC version is tested in VICE only.
PrgInfo
By Anders Persson
Download:
prginfo.zip
That's right, it's a 358 byte version of this...