Wario's Dunk Tank was an online Adobe Flash game published by Nintendo to promote the release of Wario Land 4 on the Game Boy Advance. It was playable from the Welcome to Greedville microsite, alongside two other games called Wario's Grab Bag and Wario's Crazy Caps.

Wario's Dunk Tank was an online Adobe Flash game published by Nintendo to promote the release of Wario Land 4 on the Game Boy Advance. It was playable from the Welcome to Greedville microsite, alongside two other games called Wario's Grab Bag and Wario's Crazy Caps.