Hey! I loved your game, I have a fun time trying to beat the level even if it took me too long hahaha. The gun and rope mechanics works really well and feel fun to use, my suggestions would be to change the jump button to W them because it was a little unconfortable using the spacebar for me and the wall jump is a little overpowered, you can almost skip the final part of the level, maybe you can add something to prevent the abuse of that feature. For level design ideas I was thinking something like using the rope to swing abobe a large spikes area.
Nice work!!!