Aura", a nod to the comic books (Nightcrawler becomes invisible in shadow). Nightcrawler can teleport behind and combo-attack several foes during a brawl. Iceman's levels most closely resemble flight-sim games similar to Star Wars: Rogue Squadron as he continuously rides on his trademark ice slide. Iceman creates an icy path in front of him, flying through the air while shooting his ice beam and ice projectiles. Iceman's attacks are an Ice Beam, which cools off fires and damages foes; Frost Shield, which will cancel any damage he takes while it is "up"; and Hailstorm, which is his main attack, hurling several balls of ice at targets. Iceman will heal automatically as long as he doesn't incur damage for an amount of time. The player must keep up a quick speed when sliding, as slowing down too much will knock Iceman off the slide. Plot During a session in the Xavier institute's Danger Room, Logan / Wolverine battles his brother, Victor Creed / Sabretooth, and ultimately ends up losing the session, though he had been saved by the timely arrival of Iceman, who was there so that Cyclops could train him, but is too crippled with grief to do so due to Jean Grey's apparent death . After Logan trains Iceman in the Danger Room, Professor X warns Logan against trying the Danger Room on "Danger Level 7" again, before asking the X-Men to return to Alkali Lake to retrieve irreplaceable parts to Cerebro. Nightcrawler infiltrates the remnants of William Stryker's base with his teleportation ability, since the weapons systems were somehow operational. Once inside, the X-Men discover a group of agents called HYDRA looting the base. Nightcrawler and Colossus go to find the Cerebro parts while Logan and Storm investigate HYDRA's presence. Logan and Storm discover that Stryker had been building giant robots called Sentinels as another plan to eradicate mutantkind. Storm is abducted by Lady Deathstrike and Logan pursues her, eventually rescuing Storm. Nightcrawler is plagued by visions of Jason Stryker, who reminds Kurt he left him to die. Nightcrawler retrieves the Cerebro parts, battling a Sentinel in the process. A massive Sentinel - the Master Mold is activated and rises from Alkali Lake. The X-Men and Lady Deathstrike escape; Logan attaches himself to Deathstrike's helicopter to follow her while the other X-Men return to the institute. Iceman stops Pyro from triggering a meltdown at a nuclear power plant