The visual design of Rescue Razzle is simple enough. Razzle is a little rat in a cage stacked on top of simple wooden crates in various patterns. The only other aspect to the game's graphics are the few backgrounds where the game places Razzle's precariously balanced pile. These settings include a flooded warehouse, a garage, a library and a couple of other locations. There isn't really thing special about these backgrounds; they pretty much give the eye a little something extra to look at while trying to figure out the exact order to remove creates. They do at least give you excuses for why Razzle's cage can't hit the ground. This is typically because of water or rat traps along the lowest level of the screen.
The game's audio is actually quite nice (though it can be turned off so you can listen to your own music, of course). The background music has a nice pronounced rhythm that seems to fit well with the sounds of breaking crates and Razzle's squeaks (which occur every time he hits something).