You should have made it so you can rotate the cube in your hands and while it's being thrown it doesn't rotate because fumbling around the cube to get it to the correct side is not fun. Also why are you slower when holding the cube? Rockets kinda just suck, they feel like they're avoidable and its just about speed but it was actually a puzzle the whole time. Maybe just something like a timer that kills you if you are in an area works better since it is clearly unavoidable. It would've also been nice to know sooner that holding down click lets you throw it further and you should be able to drop the cube without throwing it. The presentation though is really good and is very clean and nice.