Conceptually, it's really cool. Combat feels amazing. Time slowing down while I'm mentally calculating everything makes me feel cool like I'm in superhot. By the end tho, fighting enemies stopped being worth it. I realized I could just dodge them by using the calculator as a way to access bullet time. Especially after the robot guys got introduced. Running past one is just much easier than bothering to fight it. I guess that's not your fault, but mine as a player. I think if I was on low health I would have fought them for batteries so that still works out. Maybe a few forced fights to get the keycards could have worked..