Rare mecanics I'd love to see again are Freeze and Reverse Time from Timeshift (https://en.wikipedia.org/wiki/TimeShift https://en.wikipedia.org/wiki/TimeShift)

Rare mecanics I'd love to see again are Freeze and Reverse Time from Timeshift (https://en.wikipedia.org/wiki/TimeShift https://en.wikipedia.org/wiki/TimeShift). You can Freeze Time to do things like turn water into a walkable surface, go through electricity, throw a bunch of bolts at once (this one also exists in Dishonored). Reverse Time is more rare (I recall only Braid having something similar ?) and is even used in one of my favorite speedrun tricks ever: shoot at something to make it explode (such as a motorcycle), reverse time to bring the exploding fragments back into their original object's shape, jump on one of the fragments (such as a tire) and let time play again, catching a ride on the explosion. You can even influence where the fragment is going by shooting at it in Slow Time before reversing, it's not precalculated physics.