First of all, hello to everyone! I'm new on this forum, so I thought some short introduction will be in order. Now right to the topic:

10 years ago I purchased a copy of TM2 for PSX.
Since then I've played through every game of the series and discovered one odd thing, that my first TM2 - actually different from TM2 everyone knows. Differences are:
- Majority of secret moves doesn't work with commonly known codes
- Statue of Liberty could be destroyed and that's about it. No lady in red bikini.
- Trains in Hong Kong can't be destroyed.
- Sweet Tooth is absent. Code for unlock doesn't work, as well as he's nowhere around as an enemy vehicle.
- Minion can be unlocked, but he has much darker texture and his freeze bomb in special always missing the target.
- Dark Tooth doesn't use his infamous clown-ricochets, instead using regular ones. Also his laughter has lower pitch, like Sweet Tooth in TM1. Flaming head just spinning around, not twisting in all directions.
- After enemies toasted in Amazonia instead of red text like "Minion rises from lava.." etc, you see big yellow "Say Hello To Minion!". In case with Dark Tooth - "How about a little Icecream?".

I'm kinda confused. Is it an early version of the game, or different region version, TM EX (Jp) or what the hell is this and how I've got my hands on it?.. Please shed some light on the matter!
Thank you!

P.S. Solved. It was a leaked demo of the final TM2, pirated and being sold.
Here is a video of some guy featuring excerpt of gameplay of TM2 demo (for those who interested):
http://www.youtube.com/watch?v=C5glp7QZqBo