I have some info on an unreleased beta version of Monsters, Inc. for the PS2. From what I see, the beta had a much better lighting system and overall better graphics than the final. Plus, if one lurks in the final game files, there is 2 unused videos showcasing cut features that STILL has models in the game for them. This all can be found in the files using various programs, such as PS2Dis and PSound: Celia - Mike's girlfriend from the movie. If you open MONSTERS.SKX in PSound, there are 2 unused voice clips. 170 and 171 are the ones. Mike and the unused levels - From sound files 104 to 126- there are unused lines, possibly from the main menu since he mentions a memory card. Here is a list of levels that are used: 1. scareflr - Scarefloor 2. pgarage - Mail Room 3. mainst - Main Street 4. sullyapt - Sulley's Apartment 5. basement - Garbage Disposal 6. himilaya - Himilayas 7. doormaze - Door Vault 8. showdown - The Showdown Here are some unused levels only mentioned in the game's files: 1. trainsim 2. corridor 3. pgaragec 4. maindest 5. sewers 6. rooftop Some potentially unused levels, not verified: 1. dmrand 2. dmwater 3. boosroom 4. scareflr2 Those level names can be found using PS2Dis and opening SCUS_971.23 Here is a list of unused songs: CDAHeli.KS - Level isn't even mentioned anywhere besides this sound file. Sewers.KS - Level is mentioned a few times. This song is used, albeit in the door vault level. And taking a gander at this blog shows some stuff: http://animationfail.blogspot.com/2009/11/blast-from-past-ps2-monsters-inc.html More could be found probably.