If the dissembler can't handle a certain fat binaries (where they include multiple architectures in the same file), we can extract the specific architecture and disassemble that:
iron@MacOS UnCrackable Level 1.app % lipo -archs UnCrackable\\ Level\\ 1
armv7 arm64
iron@MacOS UnCrackable Level 1.app % lipo UnCrackable\\ Level\\ 1 -extract armv7 -output uncrackble1_armv7
iron@MacOS UnCrackable Level 1.app % lipo -archs uncrackble1_armv7
armv7