Cirno can be the strongest for real now! Her stuff's good.

Samus gains:
[b]X-Ray Visor:[/b] The name is actually misleading, but this allows Samus to see through all but dense metals and certain materials that don't "agree" with the Visor, so to speak. Samus is, as with the Thermal Visor, able to engage in combat while this Visor is equipped.
[b]Ice Spreader:[/b] This is the charge combo for the Ice Beam, and costs ten missiles to use. A homing "ice missile" is fired from the missile launcher. If it hits its target while said target is on the ground, a sheet of ice coats the ground in a six-foot radius, freezing everything in that range solid for half a minute, after which the ice thaws.
Due to the larger number of upgrades, Samus gains two energy tanks and four missile expansions compared to her usual 1-2, bringing her up to eight energy tanks and 80 missiles.