Bubsy 4D is, straight up, a bad time. It’s fun to jump around a little bit and play with the tools you get, but in a fleeting, shallow way that isn’t enough to sustain a multi-hour platforming video game. There’s nothing to do with those tools, no practical application that’s actually fulfilling for the other parts of your brain you want to use in games like this. It almost feels like a tech demo, a demonstration that it’s possible to redo Bubsy 3D in a way that doesn’t feel like the controller you’re holding is a hunk of radioactive alien detritus not meant for human hands. But the rest of it just isn’t there.