If you've played any version of Roogoo, you won't be surprised by how Roogoo Attack! looks. While there's often not all that much to look at, everything looks almost unnaturally soft. The Roogoo and Meemoos both register very high on the cutesy meter. The environments are distinct and interesting enough, but by the time you reach the end of each world, you'll definitely be ready to leave. There's not much animation work to speak of; there are a lot of falling shapes, and I can't really find much fault with the way they fall.
Roogoo Attack! sounds like a budget-priced title, for better or worse. It's almost (if not completely) identical to the work done on the other Roogoo games. The soundtrack is decent enough, but it gets extremely repetitive. The same goes for the sound effects -- each shape has its own themed group of sounds, and you'll hear each one more than you'd probably like.