3. DMA Designs was sued by Pixar, preventing more copies from being produced
Only 300,000 copies of Uniracers were produced because DMA Designs was sued by Pixar, preventing more copies from being produced.
After its release in 1994, DMA Design was sued by Pixar over the game and its use of unicycles.
It prevented any further copies after the initial 300,000 from being manufactured. Read more at https://en.wikipedia.org/wiki/Uniracers