Special Alternate Ending
In the mission Beat Up Clyde, if you choose to walk out of the room with Mr. Slave rather than trying to deactivate the snuke, then you will witness a special alternate ending.
During the "Beat Up Clyde" level, walk out of the room with Mr. Slave instead of deactivating the snuke.
Go to City Wok and find the two elf children near the front of the store. Attack them and defeat them for easy experience points. Enter City Walk and save the game before exiting. The elf children will have respawned. Repeat the process as many times as desired. Note: Collect the items that they drop or they may eventually stop respawning.
Search the sewer vents to find the Emmy awards that the South Park television show has won.