Once we got the time-manipulation prototypes working we were able to experiment, and the ideas began to flow. We started to come up with hundreds of ideas, many of which ultimately made it into the game: ideas such as, "Hey, let's steal weapons out of opponents' hands during time-stop." Or, "Let's allow the player to shoot stuff down, climb on it, reverse time, and defy gravity by riding the reversed objects back up to where they came from." Or, "Let's create opponents with guided missiles that track the player as he moves so that the only way to avoid the tracking is to stop or slow time and get the hell away."