Wow, that guy is strong carrying anvils like that and throwing them with such precision, my experience is that you need to be two to houl one onto something with wheels.
About th depth gauge that a lot of people are suggesting, isn't the water color working as that. at the top it's dark blue, then it's green, then reddish purple, then bluish purple, then dark blue fading to black. just look at the bacground color and you see how deep you are.
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