I think your feedback is spot on.
I'd ramp the difficulty if this became a bigger thing, but for this entry I figured two easy rooms and two difficult rooms, so then players could choose to challenge themselves or not.
The rope can be a little wonky on HTML. I'm still trying to figure out some of the intricacies with GMS2 HTML builds (I know floating numbers cause some movement issues), but the Windows build I'm fairly happy with and it helps if you use a gamepad. I don't play on computers much so I feel like I always pick the worst possible control layout for my games.
If it was a tiny cactus hazard, those are there to keep you off platforms for safe zones, but if it was the green enemy ones the trick is to rop them first so you can land next to them or land on them and kill them. I just updated my screenshots with a gif at the top sort of showing how it works. I would have liked to intro that in the tutorial and the fact that you can bullrush into your lasso for a boost of air, or throw your lasso down and call it back to you for an extra high jump, then once more for even more air, but geez did these two weeks fly by!
Thanks again for playing and for replying with more valuable feedback. Conversations like this are what make the community great. Thanks for being part of it.