love the climbing/hanging on to ledge feature, althoug the controls are kinda janky when it comes to left and right movement sometimes going a certain direction doesn't work properly. love the concept though i recommend it!
if you had health pickups as an upgrade that would be cool, if you wanna keep the hardness of the game but still have a better chance of survivin an upgrade where you could have medkits spawning for like 20 points would be cool.