Successfully complete story mode to unlock the "Another Story" option. In Another Story mode you will play as a robot trying to get the rival girl.
Birthday greeting
On the date that you entered as your birthday in the system settings, the girl will greet you by saying "Happy Birthday" at the main menu.
Bull mini-game in Survival mode
Complete Scene 8.
Cake Battle mini-game in two player mode
Complete the Snowball Fight mini-game in story mode against the girl.
Different ways to unlock gloves
Normally you have to get 55555, 77777 or even 88888 Love points to get these gloves.
Effect - Code
# 03 Hand Puppets - Start the game with Sonic Advance 3 in the GBA cart slot
Amy Rose's boxing Gloves - Get 77777 hearts or Sonic Battle into your GBA-Slot
Fist Gloves - Get 88888 hearts or Chu Chu Rocket into yoour GBA-Slot (the most hearts for the most unfamous game, good deal, SEGA!
Pink glittery - Gloves 55555 Hearts or put Sonic Advance 1 or 2 in the GBA-Slot
White Gloves - Have Puyo Pop in GBA Slot
Eye mini-game in two player mode
Complete the Eye mini-game in story mode.
Hair Color Option in Maniac Mode
This option lets you change the girl's hair color.
Hair Color - Find 10 Rabbits
Hard difficulty
Successfully complete the game under the Normal difficulty setting.
Heaven difficulty
Successfully complete the game under the Hell difficulty setting.
Hell difficulty
Successfully complete the game under the Hard difficulty setting.
Holiday greetings
Set the system date to December 25, January 1, and other holidays to hear a new greeting from the girl.
Multiplayer Battle Games
Effect - How to Unlock
Ball - Available from the start
Cake Battle (only for 2 Player) - Beat Snowball fight in Story (the one against the girl)
Eye - Beat eye in Story
Snowball Chase (on normal balls in a garden) - Beat Snowball Chase in Story (the one where you chase the girl)
Swimming on a tree - Beat the game in Story, where you swim on a tree to save your girlfriend from the crocodiles
Table Hockey (only for 2 Player) - Beat Disk in Story
Seashells mini-game in multi-player mode
Complete Scene 16.
Skip Story mode level
Tap the blue button at the lower right corner of the "Start/Quick Start" menu that appears before a level. Tap the yellow button that appears. Tap the small button that appears and select "Yes" three times. Note: This can only be done once on each difficulty setting in Story mode.
Snowball Chase mini-game in multi-player mode
Complete Scene 23 in story mode, where you chase the girl.
Sound recorder
At the title screen, press Down + Y to record from the microphone. Press Down + Y at the title screen again to play back the recording.
Sound Test
Successfully complete Story mode to unlock the "Sound Test" option.
Stealth: Easy completion
On level 21 "Stealth", when you have to bury your friends, just hit them all in one place so you do not waste time.
Studio option in Maniac Mode
Studio mode lets you choose different poses for this girl.
Studio - Find 30 Rabbits
Swimming On A Tree mini-game in two player mode
Complete the Swimming On A Tree mini-game in story mode to save the girl from the crocodiles.
Table Hockey mini-game in multi-player mode
Complete the Disk part of story mode.
Talking Girl in the Main menu
On your birthday Christmas, or at new year the girl wishes it to you for that day.
Unlock extra modes
When you beat story mode, you unlock 2 new features: A sound test, and another story.
Sound Test lets you play all the tunes from the game, while watching a dance robot grooving to the beat.
Another Story is a very short mode that lets you redo some of the love scenes from the main story, but instead of wooing the main love interest, you are now a robot trying to woo the rival girl.
Unlock new Time Attack/Survival games
Beating certain scenes allow you to play new games in Time Attack/Survival challenge mode.
Effect - Code
Bull survival - Beat Scene08
Graffiti time attack - Available from the start
Seashells time attack - Beat Scene16
Snowball chase time attack - Beat Scene23
