Dwarf/ Young hedgehog:
the minimum size for this species on the planet mobius, its weakness is the size-changing rays of sonic cd due to its small size it could disappear

Normal hedgehog:
Sonic and many characters like that are of that height because they are the average

Skinny hedgehhog:
the disadvantage is that it takes twice as long to push objects than a normal mobian, but has the advantage of jumping higher

Chubby hedgehog:
is usually almost slow but can do double damage to robotnik bosses

Strong hedgehog:
can break walls without rolling, do not confuse them with gym hedgehogs, they are much stronger than this

Gym hedgeghog:
Most of the time he is seen inside a treadmill to run over the enemies in a fun way, in an emergency he runs very fast and hits the enemies with his hands

Giant hedgehog:
They are strong enough that it could lift gas cylinders like circus balls, but it weakens like any other mobian being hit by a train and dies, except for the gym hedgehog who would break a train with his treadmill when falling, it is the only size that You cannot enter a plane or a guide bubble