Drusselstein Driving Test is an online computer game where the player helps Heinz Doofenshmirtz pass his drivers test.
The player controls a goat, by clicking on the screen rapidly. Once the goat hits the car, Heinz Doofenshmirtz can be controlled. The player can also use limited gnome rockets for extra distance, and they can purchase more (and others) from the shop. The player is done when the car hits gnomes or can't go any further. Doonkelberries can be collected and purchased for upgrades.
- "Drusselstein Driving Test Waltz" (instrumental)
- When the car is spinning while Doofenshmirtz holds Balloony, his arm isn't attached to his body.
- It is possible to get an F+.
- The "Bewege dich nicht! (Don't move!)" quote from Mr. Doofenshmirtz can be heard if the car gets stuck in a pile of lawn gnomes.