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The classic first-person platformer with a Portal-esque aesthetic tends to be Mirror's Edge...
"And as long as a sack of shit is not a good thing to be, chivalry will never die."
Not even close, the setting for the first area was almost literally portal-esque, with the walls being the black panels from 2, but the overall aesthetic being closer to the first, and featured little to no platforming at all until I got outside, where it immediately changed to Bolt-esque platforming. Though now that I think about it, I think the first-person part went out the window somewhere along the cliff scene, but I can't remember much.
Edited by Gofastmike
If it's just a dream, it's probably not a real video game.
For every low there is a high.
I'm with Unicorndance. Are you saying this a real game you played and then had a dream about it?
Last night, I had a dream about a rather odd video game. It started with a setting similar to Portal, minus the portal gun, being a first-person puzzle-solver in a lab environment. but as I (or whoever the PC was) got outside, it changed to a cliff-side setting similar to the game based on Disney/Bolt, and focused more on (laughably easy) platforming than puzzle solving. But the best part is that at the end, in a large crater-like gap in the cliff, was a massive whirlpool, easily 100' across at the edge, with the machine above it apparently causing it while also harvesting(?) the water that was sent airborne, as it created a faint waterspout effect despite the raging whirlpool below.
Edited by Gofastmike