For this achievement you need to collect all of the career mode stars - there are 180 in total, spread across 59 different levels.
Keep the following in mind:
- Stars can be collected in separate attempts of the levels. (Special Edition medals can be earned by collecting all stars on a level in one attempt, although are not required for this achievement).
- Stars collected in the Lab Experiments do not count toward this achievement
There are a number of different stars that can be available to collect on each level:
Collection Star
Collect all of the items in the level. These change dependent on the character you are using - the Knight collects Chalices, whereas the Monkey collects Banana's.
Target Star
Hit all of the targets in the level. These are circular orange, yellow and red pads and must be hit from a height.
Target-Time Trial Star
Hit all of the targets, and finish in under the specified time
Target-Combo Star
Hit all of the targets, and hold your combo for the entire level
Hidden Star
This is a star which is hidden in the level, you have to hit them to collect them.
Coin Dash Star
This involves collecting all of the coins on the level, after hitting an initial red coin - this will make the other coins appear and start a timer. When the timer ends any remaining coins will disappear.
Coin Dash-Combo Star
Collect all of the coins on the level - again after hitting the initial red coin - but ensure that you hold your combo for the entire level
Danger Star
Collect the individual letters spelling the word DANGER - they will appear in order on the level, meaning if you collect R and haven't collected E then it will be earlier in the level.
Time Trial Star
Complete the level in under the specified time.
Combo Star
Hold your combo for the entire level, it should say 'Combo Active' at all times on the lower right of the screen - try to wheelie when on flat ground and do tricks when in the air.
Race Star
Come first place in the race, these generally aren't too difficult although picking a good line is important to avoid obstacles that slow you down, like loops.
Bowling Standard Pins
Knock over all of the white pins
Bowling Mega Pins
Knock over all of the black pins
Below I have listed each level, along with the level type, the number of stars available on the level and which type of stars these are. If there is an asterisk (*) next to the level this means that there is also a Special Edition medal available to collect - this is achieved by collecting all of the level stars in one run.
The information listed below can also be viewed in game, the medals you have got on each level will appear in colour on the level selection screen, and the ones not yet attained will be 'faded' - I've provided this list for completions sake.
Stunt Weekly
Level: Joe Danger Returns
Stars: 1 - Collection Star
Level: Back in the Saddle
Stars: 0
Level: Joe Danger Rides Again
Stars: 2 - Collection Star, Target Star
Level: Has He Still Got It?
Stars: 1 - Collection Star
Level: Joe's Got Style, A Groovy Style
Stars: 7 - Collection Star, Hidden Star, Hidden Star, Coin Dash Star, Danger Star, Time Trial Star, Combo Star
Team Nasty
Level: Team Nasty
Type: Race
Stars: 2 - Combo Star, Race Star
Comeback Tour
Level: Mostly Dangerous*
Type: Target
Stars: 4 - Collection Star, Hidden Star, Target Star, Target-Time Trial Star
Level: The Warthog*
Type: Event
Stars: 2 - Collection Star, Danger Star
Level: The V
Type: Event
Stars: 1 - Combo Star
Level: Cloudy Mountain
Type: Race
Stars: 2 - Combo Star, Race Star
High Voltage
Level: The Tempest
Type: Coin Dash
Stars: 1 - Coin Dash Star
Level: Knuckles*
Type: Target
Stars: 4 - Collection Star, Target Star, Target-Time Trial Star, Target-Combo Star
Level: It's Tricky
Type: Coin Dash
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: World Warrior*
Type: Race
Stars: 3 - Hidden Star, Combo Star, Race Star
Explosive Tour
Level: Super Effective
Type: Coin Dash
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: The Funkotron
Type: Event
Stars: 5 - Collection Star, Hidden Star, Danger Star, Time Trial Star, Combo Star
Level: Star Power*
Type: Target
Stars: 4 - Collection Star, Target Star, Target-Time Trial Star, Target-Combo Star
Level: The Crowbar
Type: Event
Stars: 2 - Collection Star, Time Trial
Level: Pole Position
Type: Race
Stars: 2 - Combo Star, Race Star
Shock Hazard
Level: Quad Damage
Type: Event
Stars: 6 - Collection Star, Hidden Star, Target Star, Danger Star, Time-Trial Star, Combo Star
Level: Sonic Flash
Type: Coin Dash
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: The Boomerang*
Type: Target
Stars: 4 - Collection Star, Target Star, Target-Time Trial Star, Target-Combo Star
Level: The Castle of Illusion
Type: Puzzle
Stars: 2 - Hidden Star, Hidden Star
Level: Devil's Canyon*
Type: Event
Stars: 4 - Collection Star, Hidden Star, Time Trial Star, Combo Star
Level: Alpha Mission
Type: Puzzle
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: Death Race
Type: Race
Stars: 2 - Combo Star, Race Star
Crush Zone
Level: The Crazy Box
Type: Bowling
Stars: 1 - Bowling Star (Mega Pins)
Level: The Axe
Type: Coin Dash
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: Turbo Boost
Type: Event
Stars: 8 - Collection Star, Hidden Star, Hidden Star, Target Star, Coin Dash Star, Danger Star, Time Trial Star, Combo Star
Level: The Klobb*
Type: Target
Stars: 4 - Collection Star, Target Star, Target-Time Trial Star, Target-Combo Star
Level: The Hammer*
Type: Coin Dash
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: The Afterburner
Type: Event
Stars: 6 - Collection Star, Hidden Star, Coin Dash Star, Danger Star, Time Trial Star, Combo Star
Level: The Defender
Type: Race
Stars: 2 - Combo Star, Race Star
The Danger Zone
Level: KABOOM!*
Type: Target
Stars: 4 - Collection Star, Target Star, Target-Time Trial Star, Target-Combo Star
Level: Thunder Fury
Type: Coin Dash
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: Scramble
Type: Event
Stars: 6 - Collection Star, Hidden Star, Hidden Star, Combo Star, Time Trial Star, Combo Star
Level: Farsight*
Type: Bowling
Stars: 2 - Bowling Star (Standard Pins), Bowling Star (Mega Pins)
Level: Green Shell
Type: Coin Dash
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: Flash Bang
Type: Target
Stars: 5 - Collection Star, Hidden Star, Target Star, Target-Time Trial Star, Target-Combo Star
Level: Speed Shoes
Type: Race
Stars: 2 - Combo Star, Race Star
Master Of Disaster
Level: The Hidden Palace*
Type: Coin Dash
Stars: 5 - Target Star, Coin Dash Star, Target-Time Trial Star, Target-Combo Star, Coin Dash-Combo Star
Level: The Descent
Type: Event
Stars: 7 - Collection Star, Hidden Star, Hidden Star, Hidden Star, Danger Star, Time Trial Star, Combo Star
Level: Power Pill
Type: Coin Dash
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: The Redeemer
Type: Target
Stars: 5 - Collection Star, Hidden Star, Target Star, Target-Time Trial Star, Target-Combo Star
Level: The Question Mark
Type: Puzzle
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: Cherries*
Type: Target
Stars: 4 - Collection Star, Target Star, Target-Time Trial Star, Target-Combo Star
Level: The Barn Burner
Type: Coin Dash
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: Rush Jet
Type: Event
Stars: 6 - Collection Star, Target Star, Coin Dash Star, Danger Star, Time Trial Star, Combo Star
Grand Finale
Level: The Bomb
Type: Race
Stars: 2 - Combo Star, Race Star
Level: The Credits
Type: Event
Stars: 2 - Hidden Star, Coin Dash
Directors Cut
Level: Extra Life*
Type: Target
Stars: 4 - Collection Star, Target Star, Target-Time Trial Star, Target-Combo Star
Level: The Whale
Type: Coin Dash
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: The Cake
Type: Bowling
Stars: 2 - Bowling Star (Standard Pins), Bowling Star (Mega Pins)
Level: Map Screen*
Type: Coin Dash
Stars: 2 - Coin Dash Star, Coin Dash-Combo Star
Level: Big Boss
Type: Race
Stars: 2 - Combo Star, Race Star
Level: Rainbow
Type: Puzzle
Stars: 3 - Collection Star, Hidden Star, Hidden Star
Level: Infinite Ammo
Type: Target
Stars: 4 - Collection Star, Target Star, Target-Time Trial Star, Target-Combo Star
Level: Insert Disk 2
Type: Assault Course
Stars: 5 - Target Star, Coin Dash Star, Target-Time Trial Star, Target-Combo Star, Coin Dash-Combo Star
Level: The Joust (81 Stars to unlock)
Type: Race
Stars: 2 - Combo Star, Race Star