Attack (whereby a player must earn a set amount of Crash Dollars through checking traffic), which can be used later on. During these events, players have access to a limited amount of boost which is acquired through various dangerous driving techniques, including but not limited to driving on the wrong side of the road, tailgating opponents and drifting. Unique to the series is the concept of battling other rivals; unlike other video games in the racing genre, players are encouraged, and sometimes even required, to ram rival cars and cause traffic to crash. Causing a rival to crash is referred to as a "Takedown", rewarding the player by extending the length of their boost gauge and completely refilling it. In designated events, a boost can also be used to activate a "Crashbreaker" during a crash, detonating the car and causing other nearby cars to crash. When the rival car takes the player down, the player will have to take the ultimate REVENGE by taking down the revenge rivals (which the arrow at the top of the car turned red) is referred to as a "Revenge Takedown". In the main single-player game mode, players compete in a world tour consisting of 169 events across three continents, divided into a series of 11 "ranks" (Rank 11 has no events). The ranks to which a player has access to is determined by their "Revenge Rank", which increases after completing events. By increasing their Rank sufficiently, the player "ranks up" and unlocks the next rank of events. There are 77 cars in the game, some of which can only be used for crash events. The SUVs and saloon cars are some of them. The game also features support for multiplayer gameplay, both online and offline. In addition to the racing modes, the game features three types of Crash modes: Crash Battle (multiple players attempt a junction at the same time), Crash Party (players take turns at attempting junctions across several rounds), and Crash Tour (a golf-like version of Crash Party, with players attempting to accumulate a certain amount of Crash Dollars in as few attempts as possible; after the last round ends the player with the lowest score wins). Bonus vehicles There are two extra vehicles that can be unlocked by the presence of a saved game from another title on the memory card or hard drive when first creating own profile. A Madden