Genius Grove is the location where Dexter once lived. Mandark's House is right across the street from his, but, due to the Fusion invasion, Mandark's home is now an Infected Zone. Fusion Dexter and Computress, along with an army of Fusion Monsters, are trying to steal technology from Dexter's old laboratory using an underground tunnel that connects Dexter's and Mandark's houses. The house is now empty because Dexter moved to Tech Square and built a house for his parents, though Dee Dee lagged behind and is now the only member of their family still living in Genius Grove. Numbuh Five and Professor Utonium have stationed themselves at the house to protect Dexter's old lab.
Dexter used the Tech Tunnelers to help expand his underground lab. Fuse knew these bots meant business, which is why he corrupted them for his army. These once loyal diggers have a new master and a bad attitude.
This alien won't give up! Each Fusion Mega Echo Echo can split up into a swarm of Fusion Mini Echo Echoes. If you manage to defeat him, you and your buddies will get a special prize. After a Fusion Mega Echo is defeated, it produces new spawn regularly at 7 P.M.
One of the Thronambular wishing skulls can be found in this location, in the northwest behind a tree.
According to The Past's map, Tech Square is directly west of this location, but can't be entered simply by going over the mountains, as a large invisible wall will block out the player from moving any further.