Shin'en is perhaps best known for making exceptionally pretty, but rather dull, games for Nintendo consoles. It continues that fine tradition with Nano Assault EX, which is at once an exceptional technical showcase for its host hardware and a twin-stick shooter missing a stick. You can see why the latter might be a problem.
The game does feature Circle Pad Pro support, at which point it transforms into... well, a competent and attractive twin-stick shooter. As with the Wii U's Nano Assault Neo you're tasked with cleansing infected cells by blasting the viruses as they swarm over the surface.
It's not quite as shiny as its HD cousin, but the 3D effect compensates. Sadly, it suffers from similar issues of visual clarity: the undulating flora and dazzling lighting effects of the Wii U game are no longer an issue, but the teeny-weeny enemy projectiles that blend into your own craft's fire will lead to a few frustrating deaths.
There's plenty to sink your teeth into, mind: loads of levels, modes and options, and boss stages and tunnel sequences that add a much-needed change of pace. It's been made with typical Teutonic efficiency, but it's missing that vital spark that turns perfectly solid games into properly great ones.