The game receives the (A) press - measured, vk=5800 flags=0001, out of ~6500 polls. Input delivery was never broken; four harness bugs were, and with those fixed the boot goes title -> one (A) -> main menu. GP_DIALOG DIFFICULTY is still unreached (NEW GAME hits the standing black-screen hang), but the main menu carries two primitives, which is what the question needed. Records the slip in the instrumentation too: logging on XSUCCEEDED counts X_ERROR_EMPTY as success and buried the two real keystrokes under 6499 empty polls. Next step is now STATIC: a primitive's position is stable by role across three measured screens but nothing in the file predicts it, so dump the full 60-byte declaration entries - four words unread - and look for a word that sorts like the measured orders.