Player has built 100 houses

Received 120 on a utility rent

Infiltrate the CELL facility at Wall Street

Single Player: Kill two enemies with a single bullet

Single Player: Kill at least 3 enemies with a single grenade

Won a game in under 20 minutes

Acquired your 75th property

Escape the Battery Park evacuation center

Get an opponent to pay double the price during an auction

Someone pays you rent before your second turn

Replaced your houses with a hotel

Own 3 color groups at once