Did you see the screenshots? It is High School Hook Ups for Mobile.
This game is produced by Gameloft. I downloaded the game and install it to my Nokia 5730.
I played it and it was fun. It was like I am experiencing the life in high school.
But this game lead us to lie to get the aims. And that is what I dont like about it.
After all, to achieve all the achievements, it will be the most wanted for the player.
At first play, I only got Level 11 and it is D. Then, I played for the second time, I improved to Level 13 and I got C for it. And yes, I played it for third times and I got Level 18! I feel so great! For addition, if you want to be familiar with the high school, you should play it many times. And do what ever they want.
The 12 Chapters in High School Hook Ups are:
 First Day,  Makeover,  Boo!,  Be My Valentine,  I Heart You,  V.I.P List,  Peer Pressure,  Par-tay,  The Aftermath,  Revenge Strikes,  Prom Prep and  Starry Night
Also the Mini Games in here are: Arcade, Balloon, Basketball, Chess, Dance, History and Math (soooooo easy!)
And here, I present to you some cheats that you can use to help you in this game.
1-- Valentine's Fail
You have to remove all the 15 HEART decorations. There are 3 decorations in each buildings. So find it.
2-- Where to find Kaitlin/Carter's Diary Pages? and got The Collector
1: Behind the gym, left hand corner
2: Gym, room 2 (level 6)
4: Toilet dimension
5: Principal's office
6: Room between the Chem/Bio lab and History examination room (Level 6)
7: Robot Room (level 14)
8: Cafeteria, room 2 (level 6)
9: Behind the main building
10: Metaphysics area
11: Library, behind the first two shelves
12: Gym, beside the right-hand bleacher
13: Rooftop of Cafeteria (level 8)
14: Auditorium, stage
15: The secret passage in Room 3 of Auditorium (level 6)
3-- Score History and got Total Bookworm
Read books from library and write the dates of the important history. Then, join Ethan/? to answer it. Or, join the History class with Principal in the Classroom Building in the second floor.
4-- High School Hero
By helping all the 4 freshmen that trapped inside lockers in the whole campus. Check all the lockers.
5-- Mr. McSnowface
You can find it in "Be my valentine" and "I heart you" chapters because only in these 2 chapters are the season is snowing. Just go through in between of 2 buildings, gym and classroom, then turn left, Mr. McSnowface is there! His hat is in front of the gym building. Give the hat to the Snowman back.
6-- The Dirtbag Award
You can only achieve it when you have access of the door at top right corner of the second floor. If it doesn't open, it means you have not reached a suitable character level. When you reached the top of the building, you should talk to Sheena/Sid then start to throw water balloons to the 10 freshmen.
You can join the Chess Club after you got the Level 10 and above. You can find them in the auditorium. To answer the Task One (Six Queens Puzzle), refer this image from http://www.bildites.lv/viewer.php?file=b92bhns8kzh08cbt2iek.jpg
Then, the second task is to solve the Eight Queens Puzzle. Refer the en.Wikipedia.org/wiki/Eight-queens_puzzle.
8-- Hairy Legs
To get this achievement, you should meet Sid/Sheena at the tree in front of the archway. He will ask you again to find his tarantula that lost. You may find it at the second floor of classrooom building in the Bio/Chemistry Lab. Pick it and give it to him.
9-- To be Most Popular in Schhol
You should meet everybody in the list: Carter, Chloe, Emma, Ethan, Skye, Kaitlin, Lena/Ben, Principal, Roman, Sheena, Sid, Ty.
By beating Max's time of running in the whole campus. You can meet him near the auditorium. You will get Icarus Shoes.
11-- Top Geek
By beating Andrew's score on the arcade machine. He is standing in the top left corner, in the cafetaria with the yellow icon on his head.
12-- High School MVP
Score 30 points with 15 shots or more in basketball in gym.
13-- Kierkegaard's Path of Pain
To get to this place, it is tricky. You should choose whether to talk to Ethan/Chloe or Flirts/Alphas. Then you choose Ethan/Chloe. You will meet him/her near the dead tree and show you the secret labyrinth. Follow him/her to a maze in a mission. You will got a page of diary here. Additional, it is after the valentines day chapter.
14-- What is Main Building?
Main building is classroom building!
15-- Punks Domain
Punks domain is outside the college gate in the streets. You can go there when your dad leaves you a bit further from the school's entrance. When he drops you out of the car, move all the way to the left following the pavement opposite of the school and not the pavement that leads to the entrance. You'll eventually find the domain. Or while waiting for your prom date in the streets at the start of the chapter starry night. Or when you are still outside the school gate.
16-- High School Ghost
In the last chapter when you before you meet your love in the school terrace, go to the one of the three classroom in the first floor. There you will find your previous character when he/she was a nerd. Talk to him/her.
17-- Toilet Dimension
The toilet dimension is in the main building. There are two rooms for the rest room. Go to the left one. Then go near the stalls. There will be an arrow. Then you are in the another new toilet and there you are. There is also a page of diary.
18-- Robot Party
The robot party in in the secret room in the library. You will have access to enter the room when you got Level 14 or you will never find them. There is a page of diary.
There are limits of the game which you can go to the right side of campus, near the trees and bushes. You will see a way to the next building.
20-- Dancing Competition
Just do as the keypad in screen shows. Lick the number pad and you will win the dance competition.
21-- Jack's Backyard
It is when you are having party in your house. You will find way to your rightside neighbour by go near the trees & bushes near your rightside house. Then you will find your neighbour, named Jack at the back of his house.
22-- Blue Screen
Shut down the blue screen monitor in the computer room of classroom building on the first floor.
23-- High School Master
By reaching Level 18.
24-- Time Capsule thing
There are meters which you will know that you are near the keys. The red light will turn green if you come to these four (4) places:
(1) right bottom corner of campus,
(2) near the signboard in front of the cafetaria,
(3) near the signboard in front of gym and
(4) is at the Mr.Mcsnowman, in between of 2 buildings, gym and classroom, then turn left.
25-- To get Math paper in the locked room
You will be tasked by Sid/Sheena to get the Math paper in the classroom building. But the room is locked. Then you should go into the gym. There is a utility room at the right side hallway. The fishing rod is there. Take it. Then go back to the locked room, get the math paper then give it to Sid/Sheena.
Ask me if you want to. Thank you.
P/S: Currently downloading .jar games for my Nokia 5730. Fun eh!