Hooga looks nice and attempts to toss in a lot of visual variety. Hooga, the dinosaurs he bashes, and levels all have a sharp, distinct look that really pops off the iPhone's screen. There's a lot of detail here and you'll want to look all around just to see what little touches you can see. Look too long, however, and you'll start to see some of that "lack of polish" begins to sprout up. I noticed a few visual artifacts (pixel-lined edges) on some of the background items and at least one area where a portion of an object was missing. It's nothing particularly game-ruining, though it's a noticeable herald of things to come.
Hooga also suffers from incredibly rigid animation. Characters have a stop-motion look that would work with a slower-paced game. Instead, it causes everyone to look like they're bizarrely gliding across areas.
Although Hooga only stumbles visually, audio falls flat. The soundtrack doesn't fit the game at all. I can usually let this slide - particularly if it at least enhances gameplay in some way - but it's so out of place, it's distracting.