Controls: Kempston and Interface 2 joy, and the two shift key also can be used. Space/Fire shaking the table, P pause. Down open the ball door.
"sometimes it moves fast, sometimes in a slow and jerky way."
It is a built in tricky help: moving fast when approaching the ball, and slow when moving away from the ball.
The gameplay don't changed at all, same with the original Enterprise version.
Yes it is little frustrating at the first try
The most important tipp: catch the surprises when the left side box open.
The target: hit the diamond for the next level. Total 50 levels, only the first fixed, others come randomly.