Surprisingly better than both Aero games that this was intended to be a spin-off of. Zero has a lot of interesting movement tech, and for the first three worlds, the level design really complimented it. Plenty of secrets to find and overall a nice pace. The quality does drop a bit once you get past the caverns, as the levels become a mix of linear sections and some pretty bland vehicle romps. Definitely seems like the game was on a tight deadline which is a shame because there's glimmers of something that could've been far more. Still, it's a good way to kill an hour or two.