I can't believe the guy who did the MADNESS: Project Nexus live action trailer made this shitpost 13 years prior.
But seriously, this is a modified version of RTIL's 'rtil the bee' movie, which looped, while this doesn't, as you'll see why. The new animation frames are barely distinguishable from RTIL's original frames, including using the same mask layer for his signature striped shirt.
The only real difference is how his face is drawn. The lines are thicker and smoother and I guess the pink shoes were Hans's idea.
If you're wondering why the background doesn't move, that's because it's a movie clip. Hans downloaded the original SWF file and imported it into his own document, which also stripped it of the audio, which was easily put back in as it starts at a different point.
Original movie: https://www.newgrounds.com/portal/view/437377