Finished the entire game (including Survival), all with gold souls, using only sleeper blocks facing left and a column of wooden blocks on the leftmost side of the screen. Once in a while I had to use eye blocks but that was it. No boosters, no nothing.
For survival I used a column chomping blocks on the leftmost side followed by a column of sleeper blocks facing right, empty space, column of sleepers facing left, empty space, sleepers facing left. To avoid having a column ruined by cheese, place 1 wooden or curse block in the empty columns and they'll almost always be the ones cheese'd or wrath'd.
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