Complex sentence: The animated short was originally produced with Macromedia Flash in 2001 and meant to be showcased on Macromedia's sister-site shockwave.com, who tore up the contract when Matt and Trey showed them the first two episodes.
Split into simpler sentences: The animated short was originally produced with Macromedia Flash in 2001 and meant to be showcased on Macromedia's sister-site shockwave.com. The site tore up the contract when Matt and Trey showed them the first two episodes.