Ah ok so lemme give you a couple of clues for the last puzzle, first part is just a double grav switch, you see the massive amount of boxes, they hide something if you flip the gravity. Those portals, just look at where the orange ones are pointing, and that's all i will say! But it's great that you enjoy the game! And it's not too hard to make either, the art was stressful though as we didn't have a clear vision so i just went all out with post processing and particle effects!