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British Gaming Blog put together a little list of the bonuses you can unlock if you pop in certain GBA and DS games at the same time. The full list is after the jump.
| Nintendo DS Cartridge | Gameboy Advance Cartridge | Result |
| Advance Wars - Dual Strike | Advance Wars | Advance Warpaper, Hachi’s Land and Nell’s Land can be purchased for 1 point each. |
| Advance Wars 2 - Black Hole Rising | Advance Warpaper 2, Lash’s Land and Strum’s Land can be purchased for 1 point each. | |
| Castlevania: Dawn of Sorrow | Castlevania: Aria of Sorrow | Mina doll Easter egg in Yoko’s shop. You will also start the game with a rare ring. |
| Disney’s Kim Possible: Kimmunicator | Kim Possible | Unlocks the "Bueno Nacho" outfit. |
| Kim Possible 2 - Drakken’s Demise | Unlocks the super spy "Commando" outfit. | |
| Kim Possible 3 - Team Possible | Unlocks the white & blue "Super Suit". | |
| Project Rub | Sonic Advance 3 | Chao Hairstyle |
| Chu Chu Rocket | NiGHTS Wig | |
| Sonic Pinball Party | NiGHTS Wig | |
| Puyo Pop | Puyo Pop Hairstyle | |
| Sonic Advance | Sonic Wig | |
| Sonic Advance 2 | Sonic Wig | |
| Sonic Battle | Ulala Hairstyle | |
| Space Channel 5: Ulala’s Cosmic Attack | Ulala Hairstyle | |
| Frogger Helmet Chaos | Frogger’s Journey: The Forgotten Relic | Unlock Punk Costume |
| Frogger’s Adventures 2: The Lost Wand | Unlock Pirate Costume | |
| Ganbare Goemon: Toukai Douchuu Daiedo Tenguri | Kessakusen! Ganbare Goemon 1+2 | NPCs from the GBA game will appear while the cartridge is in. Space Mambo is added to the mini-game list. |
| Phoenix Wright: Ace Attorney (JP Only) | Gyakuten Saiban | Skip to the 5th Case |
| Kirby: Canvas Curse | Kirby: Nightmare in Dreamland | Have the cart in your GBA slot when you complete the game to unlock Waddle Doo. Nightmade in Dreamland music is added to the music test, saving you 50 medals. |
| Kirby and the Amazing Mirror | Have the cart in your GBA slot when you complete the game to unlock Waddle Doo. Nightmade in Dreamland music is added to the music test, saving you 50 medals. | |
| Madden NFL 06 | Madden 2005 | A bonus set of Madden Cards can be bought. |
| Madden 06 | A bonus set of Madden Cards can be bought (same set as above). | |
| Mega Man Battle Network 5: Double Team | Boktai: The Sun Is in Your Hand | Zoktai Trader appears in Oran Area 2 Otenko Statue in Gargoyle Castle. 1000 Bat Wacking Minigame instead of 100 Warrior wacking minigame |
| Boktai 2: Solar Boy Django | Zoktai Trader appears in Oran Area 2 Otenko Statue in Gargoyle Castle. 1000 Bat Wacking Minigame instead of 100 Warrior wacking minigame | |
| Boktai 3: Sabata’s Counterattack | Zoktai Trader appears in Oran Area 2 Otenko Statue in Gargoyle Castle. 1000 Bat Wacking Minigame instead of 100 Warrior wacking minigame Sol Cross Rockman Effect | |
| Megaman Battle Network | BGM Battle Music Changes to "Operation!" Liberate Mission Blues (Protoman) / Colonel Dominant Chip Power Up Ura Internet Area 4 Black Navi appears and asks to give an extra folder | |
| Megaman Battle Network 2 | BGM Battle Music Changes to "Operation!" Scientist appears in Dad’s office and is a Sub Chip Merchant that gives Liberate Mission Magnet Man / Knight Man Dominant Chip Power Up | |
| Megaman Battle Network 3 | BGM Battle Music Changes to "Shooting Enemy" 1 NC Program Merchant that gives Rapid+1 (Yellow) = 1500z, Charge+1 Liberate Mission Gyro Man / Shadow Man Dominant Chip Power Up | |
| Megaman Battle Network 4 (Any Version) | BGM Battle Music Changes to "Cyber Battle" Liberate Mission Napalm Man / Tomahawk Man Dominant Chip Power Up Program Advance combinations and what chips to use are discussed in Random Bulletin Boards | |
| Rockman EXE 4.5 Real Operation | BGM Battle Music Changes to "Battlefield" Gold Program appears at Netto’s homepage Liberate Mission Search Man / Number Man Dominant Chip Power Up | |
| Megaman Battle Network 5 (Any Version) | Forte Cross Rockman Effect Liberate Mission Medi / Toad Man Dominant Chip Power Up | |
| Pokemon Dash | Pokemon Ruby/Sapphire/Fire Red/Leaf Green | After beating the regular GP, you can make courses based on your current party on the GBA games. |
| Puyo Pop Fever | Puyo Pop Fever | Bonus images appear in the gallery (under options) |
| Shrek SuperSlam | Shrek SuperSlam | Unlock an alternative outfit for Shrek |
| Spider-Man 2 | Spider-Man: Mysterio’s Menace | Unlock All Special Moves |
| Wario Ware: Touched! | Wario Ware: Twisted! | Mona Pizza’s Promotional Video is added as a bonus item. |
| Yu-Gi-Oh! Nightmare Troubadour | Yu-Gi-Oh! GX Duel Academy | Receive 3 wing Koriboh cards |
DS and GBA Secrets [British Gaming Blog]
