Both your first and 2nd ones are amazing. I never imagined it to be possible to implement a 3d engine that actually includes different perspectives of a corpse/other object within the confines of 100kb. This one is 8 times larger, but still at an amazingly small size.
In terms of absolute graphics quality, I'd say it's below average, but within reason. With regards to some people's comments regarding the rhinos... it's obvious you just modded the elephant image from the previous game. The time limit was a bit annoying and whose reason for existence was never really explained. The save feature was awesome (even if it took me a while to figure out that the M was the menu and not a link to some external website [other flash animations frequently do that and it's annoying as hell]). The varied weaponry and radar was also good. The strafe buttons were at a very clumsy location (relative to forwards and backwards), thus rendering them useless. Killer butterflies? Strange grunting noise when they die?... no...
Despite the minor flaws, this is still praiseworthy for your incredible efficiency. (if possible, also read my comments for red devil RPG)