There only three the mech heavy,light,and normal.
Pandan is making one and so is Darkstar but I think we need mechs for certain places
like a mech that has no legs but conveyors on it,or a mech that is made to go under
and over water,a mech that can double jump,and a small armor mech as a item
that allows you to double jump and with the left mouse button you shoot a bullet
and with the right mouse button you shoot a rocket from the arm rocket launcher
there should be a armor mech item called MechArmor Type A and mech armor type b
B allows you to use a weapon you have in you inventory instead of the rocket!
To get out you simply un equip the mech armor type.