I played this in the arcade when I was a kid. This version feels good as far as I'm concerned.
One little thing I did notice is that in the arcade version, when there's only the slightest wall left between the player and a monster you could still blow it up without it being able to reach you. For me that was a vital mechanic :)
Viewing post in Dig Dug Revival (C64) comments
I know that in the original arcade version you can throw the pump through thin walls without enemies being able to pick you up, but personally I've always seen this behavior as a "bug" rather than a wanted feature, so I thought I'd fix it (in both versions for PC and for C64), as well as I fixed other situations that did not convince me.
Anyway, thanks for enjoying the game.