This was a fun concept. Might be nice if the first stretch was open for a bit longer so that the player can get the hang of grabbing before having low walls thrown in front of then. I barely had time to click a couple times before hitting that first bottom wall every time. While I made it past eventually, I never lasted more than a few seconds into the game, though I was never that great at Flappy Bird either.

I'm kinda in the same boat as the other commenters. I'm not really into frustrating, tedious games, and I didn't get very far. It's rough around the edges, but for someone new to game dev it's not bad. It's mechanically complete and fully functional. It's an interesting twist on the Flappy Bird concept, it's just that I was never really onboard with Flappy Bird in the first place. 

If I may editorialize a bit, it definitely feels late to the party- Flappy Bird was a long time ago- but this is the first Flappy Bird clone I've seen that really adds something new to the formula (versus just a themed coat of paint).

I struggled to get past a score of 3, due to the transition after the second block. After failing there a few times, I became discouraged and quit playing. But it's an interesting and fun twist on Flappy Bird!

This is rough but its kinda to be expected of someone relatively new to game dev.

I never really liked more frustrating tedious games like Flappy Bird, so no surprise I wasn't a big fan of this either. But I will say it did at least add a twist by having a grapple so there was a bit more challenge and tact behind staying afloat. At the same time, it felt really unforgiving and I enver made it past a score of 3. I'm assuming since its based on flappy bird that was intentional, but in any case not for me.

One piece of advice I've heard from 2D platforming devs is to not make damage collision pixel perfect on the player character, so if you just barely brush the wall at one pixel you don't die. For this game maybe that's something to try out, maybe not.

Also, there doesn't seem to be a devlog for your game?