kungdavid said:
The leftmost kid is from the Eigozuke series for DS (English Training). I don't think they are featured in the games, just on the homepage and packaging:
http://www.nintendo.co.jp/ds/angj/index.html
I'm starting to think that EVERY title/series ever made is going to be in this game at this point. It occurred to me that several games not yet visible as stickers/trophies in Brawl have appeared as cameos in the Wario Ware games. If it's good enough for Wario Ware, I'm fairly sure it will be in Brawl.
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Update 8.1 - Nintendo titles/series not present in Brawl
(
Bold indicates the series/title was present in Melee.)
1080° Snowboarding
Alleyway
Animal Leader / Cubivore
Arm Wrestling (arcade)
Battleclash
Card Hero
Custom Robo
Doshin the Giant
Duck Hunt
Eternal Darkness (the ip belongs to Nintendo, I believe)
F-1 Race
Game & Watch
Golden Sun
Gumshoe
Hajimari no Mori
Happy Panechu!
HeliFire
Hogan's Alley
Hotel Dusk
Joy Mecha Fight
Kaeru no Tameni Kanha Naru (the guy that turns into a frog -- cameo in Link's Awakening)
Kururin
Magical Vacation
Marvellous
Nazo no Murasamejou
Picross
Polarium
Radar Mission
RadarScope
Sennen Kazoku
Sherriff
Shin Oni Ga Shima (New Ogre/Demon Island)
Short Order & Eggsplode
Sky Skipper
Solar Striker
Space Fever
Space Firebird / Space Demon
Space Launcher
Star Tropics
Stunt Race FX
Sutte Hakkun
Tantei Club
Teleroboxer
Time Twist
To The Earth
Tomato Adventure
Trace Memory
Urban Champion
Wave Race
Wii Sports / Play
Yakuman (Mahjong)
Yuu Yuu Ki
All the generic sports titles
Stuff formerly/incorrectly on this list:
Band Brothers -- Barbara the Bat assist trophy (Japanese site footage)
Chibi Robo -- Chibo Robo trophy
Eigozuke/English Training -- sticker
Electroplankton -- sticker
Mole Mania -- reported Muddy Mole assist trophy
Oendon/Elite Beat Agents -- trophy (Japanese site footage)
Super Mario Strikers -- Mario in soccer outfit trophy (and/or soccer ball)