Your inside bits are atypical and process substances in different ways from the average tellurian. This makes you immune to all poisons and all but the hardiest or weirdest diseases, but interestingly vulnerable to a common food group. Choose one of fruits, meats, seafood, vegetables, grains, or dairy, when you take this power. Each time you ingest it, you automatically take 1d6 damage per mouthful.
You may touch consenting companions, choose 1 minor power from among theirs or yours, and impart it to everyone tapped for 1 scene.
Doing this costs you 1 action (unless you have more hands) and 1d4 Mind damage per other person included. If you have more than the standard number of appendages, it can be done commensurately faster.
Stomachs are so tellurian; you have a small but infinitely deep curvature in spacetime instead, ringed by a cute little event horizon. Anything you consume (so long as it fits into and through whatever mouth hole you have) disappears in the curvature’s singularity. Naturally, this also means that you have to consume nourishment in a non-traditional way, such as injecting it via syringes, or smearing it onto your ocular organ lids.
Secrete and spread your spores in a circular area. Lower your ability scores by 1 point per meter in diameter of this circle. For 1 day, you instantly become aware when someone enters the area, and whether it’s someone who know or not. You may dismiss and recoup all points as a free action at will. The spores are largely invisible, but should you so wish, they can also appear as spooky dry ice mists, or similar.
Your Composite Capacity Cluster can impart a medium power instead of a minor one.
Usually, if you’re Empty Inside, the matter that you consume is forever lost in the singularity, but not for you. Obviously you cannot bring it back once it has passed the event horizon—instead, via supercosmic abdominal muscles, you squeeze and propel it through to a second spacetime curvature. And if the thing can reasonably abide this warping (vastly easier for non-living substances), you can retrieve it via a second, purpose-evolved mouth-like hole. Wherever on your body that might live.
You are two-dimensional, and that’s one more dimension than your last fighter-man! You can cram in exceedingly odd ways, and anything you pick up becomes two-dimensional, unless you spend a point of Brawn to leave it unaffected for 1 scene. Willing creatures can be de-dimensionalized for 1 scene for 1d6 Brawn per person, and need only be touched, not picked up.