while some variety can be nice in a longer title i think i would have preferred for you to focus on one of the two games and really make that as good as it can be in the given timeframe

the stealth sections are quite neat and fit the theme nicely
the distance at which the guard catch you is a bit hard to determine, some view-cone visuals might have been nice
also doors not opening back up in rewind can lead to some strange situations, i would have been nice for the whole system to be a bit more deterministic

the parkour stages felt like a cool and quick diversion at first with some nice aimation and music
unfortunately imo they are just way too long and the perspective sometimes made the jumps hard to time
(they reminded me of the shoot em up stage in bayonetta, nice diversion in a casual playthrough, super frustrating in higher difficulties) 

i could not get past the second parkour stage, tried 10+ times but the boxes and poles sometimes spawned in such a way that made it really hard to avoid