How do you beat the watercress salad on wimpy wonderland?

Grandpa shows you Manny on the security camera. Leave and take the elevator to the lobby (now you can come and go from the building). Go right and get the shovel from Whirley Street, which you need for Gramma's driveway at the far left of the island. You are finished chasing manny, so take the Wizard Guide back to Greg's house if you haven't done so yet. Beating the game and returning the game CD to Rowley will let you continue Greg's part of the quest, and clearing Gramma's driveway will let her go to Bingo at Leisure Towers. You can join her there once you have Fregley's troll doll.