Thanks a lot for your review, it means a lot to me because I am currently polishing the game (actually just restart from zero because a jam game code is kind of a mess xD).
About the non jump, I will add a jump because finally, it doesn't remove the interest of build ladder if you can just jump one block, another building which can be cool is the bridge (when you have to cross a hole).
Yeah, the controls are not very good, that's one thing I will really work on it.
About the drill machine, I didn't understand what you meant...
If you are interested in the game I can use some play test, so if you want I will notify you when I have a beta or something !