I was thinking of Sonic with Espio, the ninja character who goes invisible, using it not to become an assassin, but to skip robots and traps, and an online mode to go with it. Here's the rundown:
- When you activate it, the world appears frozen to you, but it's actually moving for the opponent, who can see the image of your character in place, and it deactivates once the image is hit.
- In that time, you can go through the level and hit the opponent, that the level will resume from your stance, otherwise return to normal with you having skipped a major portion of it.


