Absolutely. That's why I will switched to 1.004 patch to get the dresses new nanosuits I want to get, as well as the new mk2 exospines. Then switched over delete and reinstall 1.000 from the disc whenever I wants to fight bosses and clear the stage. The Alveis Leivile, (the first stage whereby Eve can only use guns to shoot the enemies and boss, using the infinite beta attacks is useless because Eve falls to the manufacturing facility below and cannot die and restart, and the boss if set on hard difficulty is extremely hard to beat, I had to set it in story mode to beat the boss (you know the first boss with lots of human bodies stuck in it and can only use gun to shoot it).