There is no guide for this game yet. But apparently it is EASY POINTS!

Welcome to Planet 51 - 10 points 

Complete the tutorials

The Suburbs - 50 points  

Complete all the Suburbs missions

Town - 50 points  

Complete all the Town missions

Desert - 50 points  

Complete all the Desert missions

I've Got Antennas! - 100 points  

Complete all the game missions, including all tasks

Breaking News! - 15 points  

Complete level 10 in the task "Glipforg News Paperboy"

Lawnmower Master - 15 points  

Complete level 10 in the task "Lawnmower Boy"

Glipforg Deliveries - 15 points  

Complete level 10 in the task "Glipforg Deliveries"

The Dog Catcher - 15 points  

Complete level 10 in the task "Too Many Dogs in this Town"

Born to Park - 15 points  

Complete level 10 in the task "Parking Boy"

Glipforg Taxi Driver - 15 points  

Complete level 10 in the task "Taxi!"

Circus Cleaner - 15 points  

Complete level 10 in the task "World´s cleanest circus"

Car Crusher - 50 points  

Complete level 10 in the tasks "Car Crusher", "Battle in the Stadium" and "Desert Battle".

The Fastest Driver - 50 points  

Complete level 10 in all race tasks.

Car Collector - 100 points  

Unlock all vehicles (excluding vehicles unlocked at the police station)

Sticker Collector - 100 points  

Collect all the stickers that you'll earn in the tasks

Comic Fan - 100 points  

Find all the comic frames scattered around Planet 51

Curious Boy - 30 points  

Enter every open house and building in the game

Pro Cyclist - 10 points  

Travel 12 miles by bicycle

Pro Driver - 10 points  

Travel 300 miles by car

Flying Car - 15 points  

Perform a jump of 150 ft or more

Careful Driver - 15 points  

Drive a car for 3 minutes without collisions

Billboard Breaker - 50 points  

Jump through all the billboards in the game

Slippery - 40 points  

Escape 40 times from your enemies by hiding in the trash cans

Reckless Driver - 5 points 

Destroy 30 pieces of property in 60 seconds

Fugitive - 5 points  

Elude the law enforcers 3 times in a row in the same vehicle outside of a mission.

Alien! - 5 points 

Achieve and maintain the maximum level of alert for 3 minutes outside of a mission.

Perfect Gardener - 5 points  

Complete "Neera's Garden" without cutting any flowers, touching the mole, or getting hit by water.

The Coolest Paperboy - 5 points  

Get "perfect" throws for all newspapers in "The Paperboy" mission

Careful Fighter - 5 points  

Complete any car crusher mission without taking any damage

Experienced Delivery Boy - 5 points  

Don't lose any boxes in the "A Job of Little Importance" mission

Careful Parking Boy - 5 points  

Complete the "Parking Valet" mission without damaging any cars

Sweet Cleaner - 5 points 

Complete the "Cleaning The Circus" mission without making King Klong angry

Skilled Driver - 5 points  

Complete the "King Klong" mission without damaging the pickup

Fast Rock Gatherer - 5 points  

Pick up all the special rocks in the mission "Singing in the Rocks" before any go down the drain

Too Good to Compete - 5 points 

Keep first place in any racing mission for more than 1 minute…and win!

Perfect Timing - 5 points  

Finish any of Chuck's missions on foot without failing any obstacle nor taking any damage from traps