[stkni]

Clicked on first 10, then skipped to 100 by tweaking the URL.

Then jumped to 150 (when jumping to 256 didn't work) and then finished the last few.

Very reminiscent of 1980s adventure games on the Spectrum but my French isn't good enough to tell if that's the point of it.

[meh_master]

I did the same, but went up to 75 before jumping ahead by a few. The final frame is 164 in case anyone's interested.