I personally wouldn't associate this with the Red Mist name. No... I think this is really its own work. Red Mist is a edgy creepypasta. Which, was poorly written to show gore of Squidward Tentacles. This however...? It almost felt stricly its one, yet incomplete. The main objective was searching for items from the crime scene. And in the midst of this we got corrupted? (If you get all 7) I am a little disappointed on how this was not explained (As in why its different in the story between how many items you get and you being corrupted vs simply escaping). I would have just chalked this up to not having a plot, but you clearly had some sort of a plot with the SB-129 ending revealing Krabs to be the murderer, but I dont understand why you couldn't expand on that plot, or why the other things happen in response to that. Now, I do understand this was your first game...congrats! But I would still like to give some meaningful criticism of this game. Overall, the story (or any sense of a cohesive plot): 4/10.
Game Mechanics: 5/10 (Was pleasantly surprised on how this game intrigued me enough to get all of the endings. But, I found the mechanics overall to be lazy and repetitive)
Game Design: 4/10 (I am meant to understand that the graphics were likely a personal choice, but the lighting and texture seemed cheap even for a low quality style)
0verall? 4/10 avg (This is very good for your first game I'd say!)