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[edit] Marbles

Collecting more marbles will make you more intelligent, this will unlock new levels.

Title	Number of Marbles Collected	Level Unlocked
Pond Scum	0	N/A
A waffle	60	Barn to be Wild
Most Accountants	101	Psycrow
A Spleen	187	Are you Hungry Tonite?
A Chat-Show Host	239	Fatty Roswell

[edit] Udders

Collecting more marbles will make you a lot more intelligent, this will unlock new areas.

Area	Number of Udders Needed
Memory	1
Happiness	13
Fear	27
Fantasy	50