yeah... it was really weird... I continued...and then suddenly the game got really hard... I thought the enemies had a defeat animation, ya know? Continuing meant the mini boss had more health. At some point I go to menu and my save file notices it is normal. I really don't know what happened. It could have also become a freak occurrence. I was able to beat the demo at 3/4 Health upgrades. The last one is well hidden.