A: Yes. Everything—Mercedes stars, weapon bonuses, Ada missions—is gone. The only way to restore is to re-earn them or reinstall a backup.
A: Partially. General sensitivity is saved system-wide, but per-game calibration lives in the save. If you copy a save from a different sensor bar setup, you may need to re-calibrate in the Wii menu. resident evil 4 wii save data
“Where’s everyone going? Bingo?” – Leon S. Kennedy (and your perfectly preserved save file). A: Yes