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  • phosphorescent
    +2

    Portal gun. Isn't that the obvious choice?

    • mathematical
      +1

      I feel like I'd die in the first 30 minutes of having one, based on the way I played the game. I think the shock absorbent leg thingies would need to be a paired invention to prevent most injuries. Anyways, here's my death a short while after getting a real portal gun.

      1. Portal on ceiling. 2. Portal on floor. 3. Acceleration. 4. Fall to my death.

      • phosphorescent
        +1

        Mine would be similar, but it would probably involve a penny and a major head injury.