I love the game, but I AM stuck on Sigma's boss on the hard difficulty, don't know if I'll be able to finish the game because up until I got to him everything felt balanced, hard but balanced, but as you get to him you have to be near perfect to take his health while he barely touches you becasue contact damage is too high, and your damage to him is just 1 health no matter what. So yeah, gotta keep on trying, but if I can give one advice as a good update: Fix the balancing on the last stage bosses, either tone down the contact damage or boost X's damage because it has become a battle of attriction, and honestly besides that, the entire game on hard is absurdly fun. Just Sigma that is like, 450% harder for no reason. But hey, I can always restart on normal and finish the game without a problem.