Yeah, that gamemode is awesome, and i suggest you:
1. Adding more recipies to the blender: this is very nice already, but there's not much choices of drinks to make, more effects for players.
2. Chance for player to be killed, like hand grabbing not only NPC, but nearest NPC or player, or being smashed when screen turns black.
1. NPC cleanup fixes: npc cleanup only last floor, but sometimes npcs are stuck on floors.
2. Wrong turn on chair when trying to play slot machines.