it's cool but it's frustrating... and not for the main idea.
standing next to a wall and jumping just hits you into the wall or at least, sometimes it does? landing what feels like 99% on the corner of a platform makes you fall, gotta be 101% on there or it doesn't work. the screen shake on jump makes me wanna fuckin die fr. not motion sickness, just fuckin kill me instead. it's on land too? great.
enough of that
while the idea has been done before, the idea to focus the game around a timer is cool. the music is pleasant. momentum is annoying since you can't see yourself, but it's a cool extra challenge.