track - typically three laps - and attempt to beat a specific time. An alternate version records the average time for all laps. One-on-one: A race (again, usually three laps) against an opponent. The player can give themselves or the computer opponent a head start up to 60 seconds. Street Race: A single race against multiple opponents. Championship: A four-race series against three opponents. Points are received based on the player's position at the end of each race. Usually this is the last challenge in the chapter. Challenge: A race with custom rules, such as passing a certain number of cars within a time limit. Some challenges (usually the Challenge category) have a time unlock, which allows secret cars or cheats to be unlocked by completing the challenge during a certain time. The challenge can still be completed at a different time, but doing so will not unlock the reward. Kudos Kudos (from Greek κῦδος, meaning 'praise' or 'glory') is the currency of MSR. It is earned during the challenges in two categories - Skill and Style. Skill Kudos are earned by completing a challenge successfully. The difficulty of challenges is user-configurable - for example, reducing the time limit, or increasing the head start of opponents - with harder challenges rewarding more Kudos for completion. Style Kudos are earned by drifting - using the hand-brake to skid while turning. A "K" symbol appears when drifting, and becomes brighter the longer and more pronounced the drift is. The more opaque the symbol, the more Kudos earned. Kudos are also awarded for finishing a race without colliding with obstacles or other cars. Kudos are lost if the driver collides with a wall, obstacle or other car (theoretically Kudos are not lost if another car collides with the player, but this is not always the case); or by failing the challenge, which results in a final Kudos total of -25 "K" for the whole challenge. Cancelling a challenge will even result in -50 "K". Kudos are calculated on a per-challenge basis. Each challenge's Kudos result is stored, and only the last attempt at a challenge is stored. If, for example a challenge is completed with 250 "K", then subsequently attempted unsuccessfully, that challenge's result becomes -25 "K". Through playing the game, "Joker" cards may be earned. Playing one of these cards before starting a challenge will double the amount of Kudos gained or