Level 15-4 NOT A GLITCH

For everyone who thinks that level 15-4 is unbeatable do to some type of glitch:
You need Scarlet Witch. I first used Cyclops to clear the three drones and then switched to Wanda. When you hit the jump button three times, shell levitate and with a little bit of practice, youll be able to get up on the ledge.

Kay Jay Ramone about Uncanny X-Men: Days of Future Past