I think the issues I encountered durin the gameplay has already been brought to attention by HalfSmore. The grappling mechanic was a bit difficult to master. Asides these problems though I’ll say the use of the diversifiers were nice. The graphics were great as well (I loved the little floating pixels as seen in the tutorial). THe atmosphere was set well for the game. Well done!

I like the graphics and mood. 
The grapple was hard to master, the swing does  not feel natural because momentum is not conserved I think. 
There is also some bugs on death where the character can continue moving, or infinity fall.
I like the music and 80's esthetic is good. 

Cool game! The colors were nice and the art was cute! I think the grapple (?) didn't feel right at all, although it didn't feel that bad once you get the hang of it. I think if the mechanics were redesigned to closer to what actually came out, instead of it trying to be a grapple. It almost feels like there's a responsibility to include elements from other games, like the grapple, for example the coins which serve no purpose and the live system, which doesn't make sense since there aren't checkpoints, it just means you have to die and restart a specific amount of times before you get to start the timer again. I think the game was at it's best, and was pretty fun, when you were just swinging around from platform to platform, so the levels should have been designed around that a bit more.

I'm going to rapid fire a lot of feedback. These are mostly just nitpicks because I see some things that I think could just be made a little bit better. I couldn't help but notice that the UI isn't set to scale at all. It appears your using Unity and my 1920x1080 resolution seemed to be correct, so in your canvases in Unity go to the canvas scaler component and select 'scale with screen size' then type the desired resolution. The music got a little bit annoying after a bit, which I think was partially due to it resetting between scenes. (To keep an object between scenes in Unity use the DontDestroyOnLoad function). I would have appreciated more options for keys, for example W or Up arrow to jump, since those keys are underused and having more choice in terms of keybinds is generally better. Finally, a few bugs I noticed was that if you die on your last life you can continue moving, and if you pause in the main menu the game just freezes.

I did genuinely enjoy this game, I know I gave a lot of criticism but I thought it was a good game just a few steps away from being a great game (and wanted to help outline those steps). Nicely done!

what purpose the coins have? i skiped all the coins that i could for a better time, crab animation feel slow, always make sure that if you die,  you cant control the player anymore, that was really weird, also try polish the swing mechanic

the plus side is the colors and stetic is really nice, weird thing the white for lava/water, music fits well also

is nice and hard enough at the begining

The swing is very strange, but it's a nice start!

Cute game! One improvement would that you highlight the currently targeted hook point, which would make it easier to plan your approach. You might also want to add a maximum hook length, as I think I skipped some obstacles by using a hookpoint from further in the level.

Other than that, nice game!