All landmines are painful. Thankfully, I have only fallen on them once a while ago. There was an island on shatteredworld with an insane amount of landmines, and was really annoying to get through before I found a strategy. Now shatteredworld is my grind expert so you can see where that went! ;) (Also a landmine/landmines that I thought I would fall on was on the expert map orchestra, including a risky ladder landmine thing at the very end. Thankfully, I did it first try!)