I made an account exclusively for this, because this has been eating at my mind for years.
I recall a kind of older game, first person platformer based upon something to do with an old house on a cliffside, in which the protagonist is there exploring trying to find this man (grandfather?) who's seemingly trapped in some kind of alternate dimension, could be recalling wrong, though. It involved using this ray gun of sorts that was able to pick up blocks and items and freeze them in place (i recall growing or shrinking them too but it could be falty memory) to use as platforms. There was seemingly some kind of lab or generator in the house (assuming the man was a scientist) that was going falty, causing time in the house itself to periodically speed up, slow down or freeze (oddly not freezing the player, only pieces of the house itself) The building would shake a lot and there was this narrator that was speaking over some kind of broadcast system to the player, if I recall, they turned out to actually be the man at the end. The end of the game involved running towards this bright light where the silhouette of the man was visible, upon reaching him the screen would turn to the outside of the house, showing the entire building collapsing and falling off the cliff. I don't recall much of the game other than these tiny bits and pieces, but I swear I recall this game existing and it's driving me nuts!
Help finding this game of the past would be greatly appreciated!
[EDIT]: Also recall there being different hues of the screen with little particle effects to indicate whenever stuff in the house was frozen in place and there also being an energy limit on the ray gun, only letting the player hold a few things in the air at a time.