This game is nothing more then a minigame frenzy, with the BBA twist.
Gameplay:
After Dr. Lobe introduces you to BBA, you'll get thru on the Hallway, which is basicly a selection screen of what gamemodes you want to play with, like Mental Marathon and Brain Quiz, their is a multiplayer, but it doesn't offer online play, tho the multiplayer is incredibly fun.
In the end of a test, Dr. Lobe will weight your brain, and then lets you see a stastistic diagram which lets you see where you need to improve yourself in, this is ranging from easy memors to quickness.
If you own some Wii friend numbers, you can compare brain weight and then laugh eachother because the one has a smaller brain then the other.
The tests you'll play are either memors or click, drag and see and identifice stuff, it'll get addicting for a good few hours, but later on gets repetive, thats why I reccomend people to play the game in Doses of 30 minutes or something.
There are some mini-games using somekind of recorder in a Wii, that means you'll have to use the Wii as a phone to hear what the Wii is saying, its part of a scheme in the story telling your Wii is your personal coach.
Graphics:
The style is just again those silly bloated-Wii heads combined with the kiddy BBA offered us in the DS, some stuff is cellshated and the rest is simply flat, its something you'd expect from a overly chibi-JRPG.
Theres not really depth from the graphics tho, as I would love to talk more about it, they are just pretty kiddy and nothing unreal, you can basicly make the whole background and puzzles in MS Paint if you wanted just using block and line tools, with some effects of fireworks spreading in the classroom.
Is it a good mini-games collection:
Decent, in the style of BBA, its one of the better games for the Wii and it took a risk using a Wii-mode speaker option, which works well.