I think and hope these will work for whoever is playing Nibblet:
LEVEL 3 EATDOTS
LEVEL 5 EASYMAN
LEVEL 7 TK2 RULES
LEVEL 9 BALLCHAIN
LEVEL 11 THEKNIFE
Chat with our AI personalities
what is the cheat code for level four niblet arcade game
type in "theknife" at the multycolored nibblet sign
homefree
ballchain
tk2rules is for the 8th
4-easyman 11-The knife
the answer to this question is the first letter in all passwords levels 3 to 11
just type it on the start screen
3:eatdots 5:easyman
Yes, nibblet is a real word. It means a tiny piece of something, most commonly used to describe corn kernels removed from the cob; also, a morsel or a shred.-Nibblet is a copyrighted proper noun, the name of a commercial product. It may evolve into a common noun, as band-aid has done. But that has not yet happened.
I haven't found them all but I found the first two by searching their level names
World 1:steep forest, World 2:icy heights, World 3:Deadly dungeons