im in

The game differs across many aspects - the 1st released build was released around 2012, and it's very easy to get it on the internet among others.

As an example of the game version difference, there's a few examples:

• On the 2-2, the 1st obstacle height differs (unconfirmed, PC 1.0.4 compared to Android 1.2.1)
• 1.0 has a bonus called Slow Time. It was removed after some releases due to possible bug-fixes, and there was many of them, such as...
• A lot of animations are missing
• Slides aren't smooth (immediate run after performance, no fall)
• Impossible Non-Stop Jump
• ...and many other glitches

Slow Down in action