Waluigi is one of the more interesting tracks in MKDS, interesting in that it features characteristics that are virtually no where to be found in other maps, such as being able to drive down huge eminences and bump into a pinball pin. Most of the technique in this level is naturally acquired, which means you're better off practicing on the level for the Grand Prix cup, but not excessively since Waluigi Pinball is not supported via Nintendo Wi-Fi Connection.
Hazards
For A successful run on this track stay clear of the two giant pinballs since you'll get knocked over and drop any items you are currently holding, when exiting the machine don't touch the electrified paddles or you will be electrocuted and will spin out of control.The worst thing that could happen is to hit a pinball in mid air after being launched from the boost ramp and fall down the deep pit (technically an ejection tunnel into the pinball machine in which pinballs go down. Lakitu will have to pull you out there if that happens.
Shortcuts
There Are No shortcuts whatsoever