Alter A.I.L.A. Variant

At the point where the demo originally ended, Celia, Indy's "younger sis" was just about to have her life force sucked out to fuel the Monolith Cathedral's cannon, which was currently being aimed at Admin Central. Indy is caught in a terrible situation where she has to choose between letting the cannon destroy Admin Central, where her foster-father Leon is currently being held, and killing Celia, which would stop the cannon, and save Leon's life. At the end of the demo, the Monolith Cathedral suddenly powers down, but doesn't show what happened between Celia and Indy to cause it. Hence the cliffhanger.

When the scene returns to the two of them, Indy would be standing there, crying. I probably wouldn't have shown exactly what happened to Celia, but the blood spilling out from her crystal prison would've said everything I needed to. After that, everyone would catch up, only to find this scene laid out before them. Suffice to say, it's a pretty depressing scene.

Indy starts feeling something strange. She becomes short of breath, unable to speak or even stand properly. When Stiver goes to see what's wrong with her, she suddenly screams, emitting a black hole (think of her second EX ability that she used on Aila at the end of AAG). This one rages out of control, sucking up everything around her. Stiver, at point blank, gets killed immediately. Sierra and Remy manage to get away, where they see X and Devil. Devil states that this was his plan all along, to force Indy into such an erratic state that she would not be able to control her psychokinesis. So something suspicious here, would be how Devil knew about Indy's power, and why he would want it to activate like this.

The black hole continues to expand. Sierra and Remy get away, but honestly, there's really no stopping a black hole once it gets started. All that's really left is to wait as it slowly expands, destroying the city, and eventually the world.

The above is ending 1, which is what would've happened if you hadn't done a certain something before defeating X in phase 5.

But if you did, then this part would play out differently. Instead of Indy crying, it'll show Celia being broken free from her crystal prison. Indy catches her in her arms. Celia's alive, but unconscious by this point, and we get a brief glimpse of Indy's eyes: light blue.

Everyone catches up like before. This time everyone's alive. X and Devil show up. Devil laments that something outside his calculations occur, and they both leave. Stiver notices that something's wrong with Indy, and asks her about it. At this point, her eyes have returned to their normal color. But she realizes that something might be taking over her body and existence.

The game would continue as normal from there.