The level that started the whole 'Cube Story' series. "Cubes story GD" is admittedly a pretty dated level by today's standards. Writing-wise, it tells a very basic story. A cube meets another cube, they do some jumps, a hacker suddenly appears; however, thankfully, the 'God of GD' (aka RobTop) arrives to vanquish the hacker to the shadow realm. It's far from the most thematically deep or emotional storyline, but I think "Cubes story GD" is very charming for what it is. The animations and movements are pretty advanced for the time (even if some of them feel a little stilted now), and I can see why it caught on and became a popular and successful series (successful enough that there are many unofficial spin-offs from other creators). The simplicity to the its story is probably a main reason why it succeeds. It’s something accessible and lighthearted that pretty much everyone can watch and understand. Animated auto narrative-based levels (like the 'Cube Story' series or even "MrGawne") are almost destined to be four-quadrant crowd pleasers (unless they're something more arthouse or esoteric).