Were those features available in the first versions ?
Powerups
* The players can select a special power-up for his player. The following power-ups exist.
* SUPER TORQUE - The next contact with other player will super multiply any torque available.
* SUPER FORCE - Same as Super-torque but with force variable.
* BOUNCY - Player will turn into rubber and bounce everything off easily.
* STATUE - Player will turn into stone.
* REVERSE - All forces will be reversed.
* STOP - All forces will come to a stop.
* TIMESHIFT - Selected player's physics will run at half speed.
Nah, it's a game design doc. Doesn't neccesarily have to have these features.
But who is to say they won't happen in the future
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--Forum Management
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It can't be more old-school than this:
http://www.toribash.com/timemachine/index.html
Includes game design document.