After discovering the Joint and IK Handle tools in Maya, I decided to implement IK in my animation editor:
It works much better for animation than the particles and constraints; it's like a cross between that system and the bone hierarchy in the old version. I used Cyclic Coordinate Descent for the IK solver.
Some of the pixels were shamelessly ripped from Seiken Densetsu 3 and Chrono Trigger sprites.
Perfect Dark mod for Soldat, Part I:
Part II:
For this mod I also did all the little in-game graphics and ripped the sounds directly out of Perfect Dark using an N64 emulator. The second part was made 2 years after the first part, and was never fully completed.
I made the wheels "turn" - when a particle is in contact with a line segment, and the left or right key is pressed, a force perpendicular to the line is applied to the particle. It's pretty fun to play with.