I like that grapple mechanic! I wanted more to do though, I just sat on the floor the whole time and every time I tried to grapple, I died. Great start!

Not a technically impressive game, but from its simplicity it does have a level of charm. mechanics are easy enough to understand once used. it is a safe game  but also not very exciting

The grapple is fun but it could be refined a bit more. It was strange to have to click twice to get sent in the direction of  the Grapple. Maybe consider putting the force on Mouse Release so its a little more natural? Also consider spawning the obstacles as prefabs and then you can create various layouts that might be trickier than the random spawning so you could control the difficulty of the game better. One last thing I would do to improve the game feel is to Disable the users movement for a short bit and then Mathf.Lerp() between where the velocity of the grapple is and where the player is trying to move. There's some really great potential here!

The grappling idea is a fun concept however the game lacks variety and direction. Also not very challenging as the spikes mainly spawn at the top. Maybe make it so you can't hit the ground at all? The cave noises are fine but I always prefer background music. I like the cave design and the main menu.